Added the missing step into the instructions

doc/operations/error_tracking.md

@@ -29,8 +29,10 @@ GitLab provides an easy way to connect Sentry to your project:
 1. [Create](https://docs.sentry.io/product/sentry-basics/guides/integrate-frontend/create-new-project/) a new Sentry project. For each GitLab project that you want to integrate, we recommend that you create a new Sentry project.
 1. [Find or generate](https://docs.sentry.io/api/auth/) a Sentry auth token for your Sentry project.
    Make sure to give the token at least the following scopes: `event:read` and `project:read`.
-1. Navigate to your project’s **Settings > Operations**.
-1. Ensure that the **Active** checkbox is set.
+1. In GitLab, navigate to your project’s **Operations > Error Tracking** page, and
+   click **Enable Error Tracking**.
+1. Navigate to your project’s **Settings > Operations**. In the **Error Tracking** section,
+   ensure the **Active** checkbox is set.
 1. In the **Sentry API URL** field, enter your Sentry hostname. For example, enter `https://sentry.example.com` if this is the address at which your Sentry instance is available. For the SaaS version of Sentry, the hostname will be `https://sentry.io`.
 1. In the **Auth Token** field, enter the token you previously generated.
 1. Click the **Connect** button to test the connection to Sentry and populate the **Project** dropdown.