WordPress plugin/theme readme file standard. Readme.txt
The covering changes for a specific version [40476-40556]. Here are the highlights:
00 commits
00 contributors
00 tickets created
00 tickets reopened
00 tickets closed
Ticket numbers based on trac/github timeline for the period above. The following is a summary of commits, organized by component.
Miscellaneous
External fonts/images/files
https://make.wordpress.org/core
https://make.wordpress.org/themes/2015/04/29/a-revised-readme/
https://make.wordpress.org/themes/2015/04/26/changelog-proposal/