Fix formatting in README.

README.md

@@ -71,7 +71,6 @@ build the [direction page](https://about.gitlab.com/direction/).
 ```sh
 bundle install
-
 bundle exec rake build
 # To also build PDFs:
 bundle exec rake pdfs
@@ -102,14 +101,14 @@ Middleman keywords:
 To preview these custom-generated pages locally, you must first rebuild the files:
-```
+```sh
 bundle exec middleman build
 ```
 To test out the site, you must run another Web server from the
 `public` directory:
-```
+```sh
 (cd public; python -m SimpleHTTPServer 8000)
 ```
@@ -147,28 +146,28 @@ working correctly, you need to have at least Git and Docker installed, and an
 internet connection available.
 1. Clone the repository in a local folder
-   ```
+   ```sh
    git clone git@gitlab.com:gitlab-com/www-gitlab-com.git
    ```
 2. Create a Docker container
-   ```
+   ```sh
    docker create --name middleman -v "$PWD/www-gitlab-com":/site -w /site -p 4567:4567 \
      -e LC_ALL=C.UTF-8 ruby /bin/bash -c 'bundle install && bundle exec middleman'
    ```
 3. Start the container
-   ```
+   ```sh
    docker start middleman
    ```
-4. Connect to `http://localhost:4567/
+4. Connect to http://localhost:4567
 5. Change your original content as usual, and see the changes in the browser as soon as
 you save the new version of the file (otherwise, just restart the container)
 6. When you have finished, stop the container
-   ```
+   ```sh
    docker stop middleman
    ```
@@ -178,7 +177,7 @@ you save the new version of the file (otherwise, just restart the container)
 In case someone forgot the most important commands and is catting this file from the command line we end by listing them:
-```
+```sh
 kill -kill `lsof -t -i tcp:4567`
 bundle exec rake new_post
 open -a "Google Chrome" http://localhost:4567
@@ -187,6 +186,6 @@ bundle exec middleman
 or to execute the last two commands just run:
-```
+```sh
 bin/run
 ```