Minor fix in github-integration.mdx

Author: muhsinking

serverless/workers/github-integration.mdx

@@ -129,10 +129,7 @@ You can enhance your workflow with GitHub Actions for testing before deployment:
    ```
 
    <Tip>
-   TIP
-
    To add your RunPod API key to a GitHub secret, see [Using secrets in GitHub Actions](https://docs.github.com/en/actions/security-for-github-actions/security-guides/using-secrets-in-github-actions).
-
    </Tip>
 
 2. Create test cases for your repository at `.github/tests.json`: