Merge branch 'patch-1' into 'master'

Added term for Data Centre



See merge request !32

source/glossary/index.html.md

@@ -116,6 +116,10 @@ A process that involves adding new code commits to source code with the combined
 Term used to a person contributing to an Open Source Project.
+### Data Centre
+
+Atlassian product for High Availability.
+
 ### Deploy Keys
 An SSH key stored on the your server that grants access to a single GitLab repository. This is used by a GitLab runner to clone a project's code so that tests can be run against the checked out code.