add space in docs

Author: salty-ivy

docs/architecture.rst

@@ -82,7 +82,7 @@ Problematic Parts
 - Support for async and multi-threading: ``debug_toolbar.middleware.DebugToolbarMiddleware``
   is now async compatible and can process async requests. However certain
   panels such as ``SQLPanel``, ``TimerPanel``,  ``StaticFilesPanel``,
-  ``RequestPanel``and ``ProfilingPanel`` aren't fully
+  ``RequestPanel`` and ``ProfilingPanel`` aren't fully
   compatible and currently being worked on. For now, these panels
   are disabled by default when running in async environment.
   follow the progress of this issue in `Async compatible toolbar project <https://github.com/orgs/jazzband/projects/9>`_.