update docs

Author: blink1073

CONTRIBUTING.md

@@ -262,13 +262,18 @@ For KMS tests that run remotely and are expected to pass, in this case using `gc
 - Run `just setup-tests kms gcp`.
 - Run `just run-tests`.
 
-#### Enterprise Auth tests
+### Enterprise Auth tests
 
 Note: these tests can only be run from an Evergreen host.
 
 - Run `just run-server enterprise_auth`.
 - Run `just setup-tests enterprise_auth`.
-- Run `just test`
+- Run `just run-tests`.
+
+#### Atlas Connect tests
+
+- Run `just setup-tests atlas_connect`.
+- Run `just run-tests`.
 
 ### OCSP tests