Fix docstring errors breaking poe gen-docs

pydoctor runs with warnings-as-errors: the bullet list needed a blank
line before it, and the :func: reference must use the unqualified name
since pydoctor relocates __all__ re-exports to the package page.

Author: brianstrauch

temporalio/contrib/google_genai/_google_genai_plugin.py

@@ -34,7 +34,7 @@ class GoogleGenAIPlugin(SimplePlugin):
 
     This plugin registers the ``gemini_api_client_async_request`` activity
     using the provided ``genai.Client`` with real credentials.  Workflows use
-    :func:`~temporalio.contrib.google_genai.workflow.google_genai_client` to
+    :func:`google_genai_client` to
     get an ``AsyncClient`` backed by a ``TemporalApiClient`` that routes all
     API calls through this activity.
 

temporalio/contrib/google_genai/_temporal_api_client.py

@@ -6,6 +6,7 @@
 on the worker side inside the activity.
 
 This ensures:
+
 - No credential fetching or refreshing happens in the workflow.
 - No auth material (tokens, API keys) appears in Temporal event history.
 - The SDK's AFC (automatic function calling) loop runs in the workflow,