Merge pull request #3533 from bdarnell/typo-652

Fix typo in release notes for 6.5.2

Author: bdarnell

docs/releases/v6.5.2.rst

@@ -8,9 +8,9 @@ Bug fixes
 ~~~~~~~~~
 
 - Fixed a bug that resulted in WebSocket pings not being sent at the configured interval.
-- Improved logging for invalid ``Host`` headers. This was previouisly logged as an uncaught
+- Improved logging for invalid ``Host`` headers. This was previously logged as an uncaught
   exception with a stack trace, now it is simply a 400 response (logged as a warning in the
-  access log)
+  access log).
 - Restored the ``host`` argument to ``.HTTPServerRequest``. This argument is deprecated
   and will be removed in the future, but its removal with no warning in 6.5.0 was a mistake.
 - Removed a debugging print statement that was left in the code.