Readme: add Studio 6 entry on 21.11 section.

readme.md

@@ -201,6 +201,10 @@ You can save settings for specific shows into broadcast profiles. These profiles
 
 If you are using Studio on a touchscreen computer running Windows 8 or later and have NVDA 2012.3 or later installed, you can perform some Studio commands from the touchscreen. First use three finger tap to switch to SPL mode, then use the touch commands listed above to perform commands.
 
+## Version 21.11
+
+* Initial support for StationPlaylist suite 6.0.
+
 ## Version 21.10
 
 * NVDA 2021.2 or later is required due to changes to NVDA that affects this add-on.