Update code_quality.md - I'm a product marketing manager with SonarSource. My...

Update code_quality.md - I'm a product marketing manager with SonarSource. My intention with this revision is that we (SonarSource) are ok to not get attribution for our engines (our Java, PHP & Python analyzers) and feel it is only fair that Code Climate does receive attribution/credit either.

doc/user/project/merge_requests/code_quality.md

@@ -15,7 +15,7 @@ source code quality using GitLab Code Quality.
 
 Code Quality:
 
-- Uses [Code Climate Engines](https://codeclimate.com), which are
+- Uses [Engines](https://docs.codeclimate.com/docs/list-of-engines) supported by Code Climate, which are
   free and open source. Code Quality does not require a Code Climate
   subscription.
 - Runs in [pipelines](../../../ci/pipelines/index.md) using a Docker image built in the