Update Ruby gems registry name

doc/user/packages/index.md

@@ -24,7 +24,7 @@ The Package Registry supports the following formats:
 <tr><td><a href="https://docs.gitlab.com/ee/user/packages/nuget_repository/index.html">NuGet</a></td><td>12.8+</td></tr>
 <tr><td><a href="https://docs.gitlab.com/ee/user/packages/pypi_repository/index.html">PyPI</a></td><td>12.10+</td></tr>
 <tr><td><a href="https://docs.gitlab.com/ee/user/packages/generic_packages/index.html">Generic packages</a></td><td>13.5+</td></tr>
-<tr><td><a href="https://docs.gitlab.com/ee/user/packages/rubygems_registry/index.html">RubyGems</a></td><td>13.10+</td></tr>
+<tr><td><a href="https://docs.gitlab.com/ee/user/packages/rubygems_registry/index.html">Ruby gems</a></td><td>13.10+</td></tr>
 </table>
 </div>
 </div>

doc/user/packages/rubygems_registry/index.md

@@ -44,7 +44,7 @@ Feature.enable(:rubygem_packages, Project.find(1))
 Feature.disable(:rubygem_packages, Project.find(2))
 ```
 
-## Create a Ruby Gem
+## Create a Ruby gem
 
 If you need help creating a Ruby gem, see the [RubyGems documentation](https://guides.rubygems.org/make-your-own-gem/).