Merge pull request #2561 from dafriend/rev-docs-add-ajax.rst-to-build

Fix - Add ajax to docs "General " page [ci skip]

Author: MGatner

user_guide_src/source/general/index.rst

@@ -12,6 +12,7 @@ General Topics
     logging
     errors
     caching
+    ajax
     modules
     managing_apps
     environments