docs: update GitLab links

.gitlab/merge_request_templates/new_feature.md

@@ -8,8 +8,8 @@ Closes #999
 ## Checklist
 
 * General:
-    * [ ] use [rules](https://docs.gitlab.com/ee/ci/yaml/#rules) instead of [only/except](https://docs.gitlab.com/ee/ci/yaml/#onlyexcept-advanced)
-    * [ ] optimized [cache](https://docs.gitlab.com/ee/ci/caching/) configuration (wherever applicable)
+    * [ ] use [rules](https://docs.gitlab.com/ci/yaml/#rules) instead of [only/except](https://docs.gitlab.com/ci/yaml/#onlyexcept-advanced)
+    * [ ] optimized [cache](https://docs.gitlab.com/ci/caching/) configuration (wherever applicable)
 * Publicly usable:
     * [ ] untagged runners
     * [ ] no proxy configuration but support `http_proxy`/`https_proxy`/`no_proxy`

CONTRIBUTING.md

@@ -61,7 +61,7 @@ To contribute:
 
 1. Create an issue describing the bug or enhancement you want to propose (select the right issue template).
 2. Make sure the issue has been reviewed and agreed.
-3. Create a Merge Request, from your **own** fork (see [forking workflow](https://docs.gitlab.com/ee/user/project/repository/forking_workflow.html) documentation).
+3. Create a Merge Request, from your **own** fork (see [forking workflow](https://docs.gitlab.com/user/project/repository/forking_workflow/) documentation).
    Don't hesitate to mark your MR as `Draft` as long as you think it's not ready to be reviewed.
 
 ### Git Commit Conventions