Update meeting schedule

Author: anenadic

README.md

@@ -78,7 +78,8 @@ Current maintainers of this lesson (in alphabetical order) are:
 - [Matthew Bluteau][matthew-bluteau]
 - [Steve Crouch][steve-crouch]
 
-The maintainer team aims to meet at 11:00 UK time (BST or GMT) on the fourth Wednesday each month. The meetings alternate between operations meetings and co-working sprints.
+The maintainer team aims to meet at 11:00 UK time (BST or GMT) on the fourth Tuesday each month. 
+The meetings alternate between operations meetings and co-working sprints.
 Meeting notes are kept in the [Google doc](https://docs.google.com/document/d/1-SvoY_2GvlQgJnu8zfr6VnU7sev_iWZAIwBUywNSfWE/edit#).
 
 Past maintainers: