docs: fix link to service accounts documentation (#986)
fixed link based on https://developers.google.com/identity/protocols/oauth2/service-account
diff --git a/docs/oauth-server.md b/docs/oauth-server.md
index da85096..376a78c 100644
--- a/docs/oauth-server.md
+++ b/docs/oauth-server.md
@@ -30,7 +30,7 @@
If your application doesn't run on Google App Engine or Google Compute Engine, you must obtain these credentials in the Google API Console. To generate service-account credentials, or to view the public credentials that you've already generated, do the following:
-1. Open the [**Service accounts** page](https://console.developers.google.com/permissions/serviceaccounts). If prompted, select a project.
+1. Open the [**Service accounts** page](https://console.developers.google.com/iam-admin/serviceaccounts). If prompted, select a project.
1. Click **Create service account**.
1. In the **Create service account** window, type a name for the service account, and select **Furnish a new private key**. If you want to [grant G Suite domain-wide authority](https://developers.google.com/identity/protocols/OAuth2ServiceAccount#delegatingauthority) to the service account, also select **Enable G Suite Domain-wide Delegation**. Then click **Create**.