Document that task includes are now infinite depth

docsite/rst/playbooks.rst

@@ -335,9 +335,9 @@ Variables passed in can then be used in the included files.  You can reference t
 the vars section are also available for use here as well.)
 
 .. note::
-   Task include statements are only usable one-level deep.
-   This means task includes can not include other
-   task includes.  This may change in a later release.
+   As of 1.0, task include statements can be used at arbitrary depth.
+   They were previously limited to a single level, so task includes
+   could not include other files containing task includes.
 
 Includes can also be used in the 'handlers' section, for instance, if you
 want to define how to restart apache, you only have to do that once for all