DOC: assorted typo fixes in the documentation

This is another round of cleanups in various docs
diff --git a/doc/lua-api/index.rst b/doc/lua-api/index.rst
index b6b9809..fb7eb09 100644
--- a/doc/lua-api/index.rst
+++ b/doc/lua-api/index.rst
@@ -2687,7 +2687,7 @@
 .. js:function:: StickTable.info()
 
   Returns stick table attributes as a Lua table. See HAProxy documentation for
-  "stick-table" for canonical info, or check out example bellow.
+  "stick-table" for canonical info, or check out example below.
 
   :returns: Lua table