Update DEPLOYMENT.md

Co-authored-by: Marcio Tedesco <[email protected]>

Author: karpikpl

DEPLOYMENT.md

@@ -157,7 +157,7 @@ Replace `<your org>` with your organization name in the link:
 5. Set the scopes:
    - Select **Organization permissions**.
    - Under **GitHub Copilot Business**, select **Access: Read-only**.
-6. Create a client secret.
+6. Click on 'Create GitHub App' and, in the following page, click on 'Generate a new client secret'. (IMPORTANT: _**Save it for later**_)
 7. Install the app in the organization:
    - Go to "Install App".
    - Select your organization.