Remove incorrectly placed GitHub references in GitLab CI page (#5546)

docs/guides/continuous-integration/gitlab-ci.mdx

@@ -43,27 +43,16 @@ test:
     - npm run e2e
 ```
 
-:::tip
-
-<strong>Try it out</strong>
-
-To try out the example above yourself, fork the
-[Cypress Kitchen Sink](https://github.com/cypress-io/cypress-example-kitchensink)
-example project and place the above GitHub Action configuration in
-`.gitlab-ci.yml`.
-
-:::
-
 **How this configuration works:**
 
 - On _push_ to this repository, this job will provision and start GitLab-hosted
-  Linux instance for running the outlined `stages` declared in `script` with in
+  Linux instance for running the outlined `stages` declared in `script` within
   the `test` job section of the configuration.
-- The code is checked out from our GitHub/GitLab repository.
+- The code is checked out from the GitLab repository.
 - Finally, our scripts will:
   - Install npm dependencies
   - Start the project web server (`npm start`)
-  - Run the Cypress tests within our GitHub repository within Electron.
+  - Run the Cypress tests within the GitLab repository using Electron.
 
 ## Testing in Chrome and Firefox with Cypress Docker Images