Clarify wording

simonw · web-flow · commit d792dad1cf5f · 2022-09-26T19:23:17.000-07:00
diff --git a/docs/contributing.rst b/docs/contributing.rst
@@ -111,7 +111,7 @@ To update documentation using Cog::
 
     just cog
 
-To run the live documentation server (after building with Cog first)::
+To run the live documentation server (this will run Cog first)::
 
     just docs
 
