Add Ruby to Markdownlint capitalization rule

.markdownlint.json

@@ -102,6 +102,7 @@
       "Redis",
       "Redmine",
       "reCAPTCHA",
+      "Ruby",
       "runit",
       "Salesforce",
       "SAML",

doc/administration/troubleshooting/debug.md

@@ -241,7 +241,7 @@ separate Rails process to debug the issue:
    app.get 'https://gitlab.com/gitlab-org/gitlab-foss/issues/1?private_token=123456'
    ```
-1. In a new window, run `top`. It should show this ruby process using 100% CPU. Write down the PID.
+1. In a new window, run `top`. It should show this Ruby process using 100% CPU. Write down the PID.
 1. Follow step 2 from the previous section on using gdb.
 ### GitLab: API is not accessible
@@ -275,4 +275,4 @@ The output in `/tmp/unicorn.txt` may help diagnose the root cause.
 ## More information
 - [Debugging Stuck Ruby Processes](https://blog.newrelic.com/engineering/debugging-stuck-ruby-processes-what-to-do-before-you-kill-9/)
-- [Cheatsheet of using gdb and ruby processes](gdb-stuck-ruby.txt)
+- [Cheatsheet of using gdb and Ruby processes](gdb-stuck-ruby.txt)

doc/api/graphql/index.md

@@ -73,7 +73,7 @@ Root-level queries are defined in
 GitLab supports batching queries into a single request using
 [apollo-link-batch-http](https://www.apollographql.com/docs/link/links/batch-http/). More
 information about multiplexed queries is also available for
-[graphql-ruby](https://graphql-ruby.org/queries/multiplex.html) the
+[GraphQL Ruby](https://graphql-ruby.org/queries/multiplex.html), the
 library GitLab uses on the backend.
 ## Reference

doc/ci/examples/test-and-deploy-ruby-application-to-heroku.md

@@ -77,6 +77,6 @@ gitlab-runner register \
   --docker-services latest
 ```
-With the command above, you create a Runner that uses the [ruby:2.6](https://hub.docker.com/_/ruby) image and uses a [PostgreSQL](https://hub.docker.com/_/postgres) database.
+With the command above, you create a Runner that uses the [`ruby:2.6`](https://hub.docker.com/_/ruby) image and uses a [PostgreSQL](https://hub.docker.com/_/postgres) database.
 To access the PostgreSQL database, connect to `host: postgres` as user `postgres` with no password.

doc/ci/pipelines/settings.md

@@ -117,7 +117,7 @@ job log using a regular expression. In the pipelines settings, search for the
 ![Pipelines settings test coverage](img/pipelines_settings_test_coverage.png)
-Leave blank if you want to disable it or enter a ruby regular expression. You
+Leave blank if you want to disable it or enter a Ruby regular expression. You
 can use <https://rubular.com> to test your regex.
 If the pipeline succeeds, the coverage is shown in the merge request widget and

doc/development/api_graphql_styleguide.md

@@ -4,7 +4,7 @@ This document outlines the styleguide for GitLab's [GraphQL API](../api/graphql/
 ## How GitLab implements GraphQL
-We use the [graphql-ruby gem](https://graphql-ruby.org/) written by [Robert Mosolgo](https://github.com/rmosolgo/).
+We use the [GraphQL Ruby gem](https://graphql-ruby.org/) written by [Robert Mosolgo](https://github.com/rmosolgo/).
 All GraphQL queries are directed to a single endpoint
 ([`app/controllers/graphql_controller.rb#execute`](https://gitlab.com/gitlab-org/gitlab/blob/master/app%2Fcontrollers%2Fgraphql_controller.rb)),
@@ -865,7 +865,7 @@ the analyzer, and the final value is also available to you.
 [Multiplex queries](https://graphql-ruby.org/queries/multiplex.html) enable
 multiple queries to be sent in a single request. This reduces the number of requests sent to the server.
-(there are custom Multiplex Query Analyzers and Multiplex Instrumentation provided by graphql-ruby).
+(there are custom Multiplex Query Analyzers and Multiplex Instrumentation provided by GraphQL Ruby).
 ### Query limits
@@ -888,7 +888,7 @@ end
 ```
 More about complexity:
-[graphql-ruby docs](https://graphql-ruby.org/queries/complexity_and_depth.html)
+[GraphQL Ruby documentation](https://graphql-ruby.org/queries/complexity_and_depth.html).
 ## Documentation and Schema

doc/development/architecture.md

@@ -775,7 +775,7 @@ When referring to `~git` in the pictures it means the home directory of the Git
 GitLab is primarily installed within the `/home/git` user home directory as `git` user. Within the home directory is where the gitlabhq server software resides as well as the repositories (though the repository location is configurable).
-The bare repositories are located in `/home/git/repositories`. GitLab is a ruby on rails application so the particulars of the inner workings can be learned by studying how a ruby on rails application works.
+The bare repositories are located in `/home/git/repositories`. GitLab is a Ruby on rails application so the particulars of the inner workings can be learned by studying how a Ruby on rails application works.
 To serve repositories over SSH there's an add-on application called GitLab Shell which is installed in `/home/git/gitlab-shell`.
@@ -794,7 +794,7 @@ GitLab has several components to operate. It requires a persistent database
 Unicorn. All these components should run as different system users to GitLab
 (e.g., `postgres`, `redis` and `www-data`, instead of `git`).
-As the `git` user it starts Sidekiq and Unicorn (a simple ruby HTTP server
+As the `git` user it starts Sidekiq and Unicorn (a simple Ruby HTTP server
 running on port `8080` by default). Under the GitLab user there are normally 4
 processes: `unicorn_rails master` (1 process), `unicorn_rails worker`
 (2 processes), `sidekiq` (1 process).

doc/development/gitaly.md

@@ -58,7 +58,7 @@ of Gitaly and `gitaly-proto` during testing and development.
 - See [below](#running-tests-with-a-locally-modified-version-of-gitaly) for instructions on running GitLab CE tests with a modified version of Gitaly.
 - In GDK run `gdk install` and restart `gdk run` (or `gdk run app`) to use a locally modified Gitaly version for development
-### Gitaly-ruby
+### `gitaly-ruby`
 It is possible to implement and test RPC's in Gitaly using Ruby code,
 in

doc/development/new_fe_guide/tips.md

@@ -16,7 +16,7 @@ Your feature flag can now be:
 - [Made available to the frontend](../feature_flags/development.md#frontend) via the `gon`
 - Queried in [tests](../feature_flags/development.md#specs)
-- Queried in HAML templates and ruby files via the `Feature.enabled?(:my_shiny_new_feature_flag)` method
+- Queried in HAML templates and Ruby files via the `Feature.enabled?(:my_shiny_new_feature_flag)` method
 ### More on feature flags

doc/development/rake_tasks.md

@@ -270,4 +270,4 @@ To generate GraphQL schema files based on the GitLab schema, run:
 bundle exec rake gitlab:graphql:schema:dump
 ```
-This uses graphql-ruby's built-in Rake tasks to generate files in both [IDL](https://www.prisma.io/blog/graphql-sdl-schema-definition-language-6755bcb9ce51) and JSON formats.
+This uses GraphQL Ruby's built-in Rake tasks to generate files in both [IDL](https://www.prisma.io/blog/graphql-sdl-schema-definition-language-6755bcb9ce51) and JSON formats.

doc/development/uploads.md

 # Uploads development documentation
 [GitLab Workhorse](https://gitlab.com/gitlab-org/gitlab-workhorse) has special rules for handling uploads.
-To prevent occupying a ruby process on I/O operations, we process the upload in workhorse, where is cheaper.
+To prevent occupying a Ruby process on I/O operations, we process the upload in workhorse, where is cheaper.
 This process can also directly upload to object storage.
 ## The problem description
@@ -40,7 +40,7 @@ We have three challenges here: performance, availability, and scalability.
 ### Performance
-Rails process are expensive in terms of both CPU and memory. Ruby [global interpreter lock](https://en.wikipedia.org/wiki/Global_interpreter_lock) adds to cost too because the ruby process will spend time on I/O operations on step 3 causing incoming requests to pile up.
+Rails process are expensive in terms of both CPU and memory. Ruby [global interpreter lock](https://en.wikipedia.org/wiki/Global_interpreter_lock) adds to cost too because the Ruby process will spend time on I/O operations on step 3 causing incoming requests to pile up.
 In order to improve this, [disk buffered upload](#disk-buffered-upload) was implemented. With this, Rails no longer deals with writing uploaded files to disk.

doc/topics/autodevops/index.md

@@ -420,7 +420,7 @@ spec:
 - Auto Build and Auto Test may fail in detecting your language/framework. There
   may be no buildpack for your application, or your application may be missing the
-  key files the buildpack is looking for. For example, for ruby apps, you must
+  key files the buildpack is looking for. For example, for Ruby applications, you must
   have a `Gemfile` to be properly detected, even though it is possible to write a
   Ruby app without a `Gemfile`. Try specifying a [custom
   buildpack](customize.md#custom-buildpacks).

doc/user/project/highlighting.md

@@ -10,7 +10,7 @@ If GitLab is guessing wrong, you can override its choice of language using the `
 When you check in and push that change, all `*.pl` files in your project will be highlighted as Prolog.
-The paths here are simply Git's built-in [`.gitattributes` interface](https://git-scm.com/docs/gitattributes). So, if you were to invent a file format called a `Nicefile` at the root of your project that used ruby syntax, all you need is:
+The paths here are simply Git's built-in [`.gitattributes` interface](https://git-scm.com/docs/gitattributes). So, if you were to invent a file format called a `Nicefile` at the root of your project that used Ruby syntax, all you need is:
 ``` conf
 /Nicefile gitlab-language=ruby

doc/user/project/operations/feature_flags.md

@@ -175,10 +175,10 @@ a number of community contributed libraries.
 Official clients:
-- [unleash/unleash-client-java](https://github.com/unleash/unleash-client-java)
-- [unleash/unleash-client-node](https://github.com/unleash/unleash-client-node)
-- [unleash/unleash-client-go](https://github.com/unleash/unleash-client-go)
-- [unleash/unleash-client-ruby](https://github.com/unleash/unleash-client-ruby)
+- [Unleash client SDK for Java](https://github.com/unleash/unleash-client-java)
+- [Unleash client SDK for Node.js](https://github.com/unleash/unleash-client-node)
+- [Unleash client for Go](https://github.com/unleash/unleash-client-go)
+- [Unleash client for Ruby](https://github.com/unleash/unleash-client-ruby)
 Community contributed clients: