As you can see GitHub has "fixed" the issue about markdown link generation.
However the patch applied by GitHub doesn't work when the branch name has slashes (release/xxx)
Making relative links in Markdown files
Am I allowed to tell you to not use branch names with slashes?
Just kidding! Works now. Thanks for pointing it out, keeping me honest.
@ymendel Thank you
Merge branch 'hotfix/3627' into develop
Forward port #3627
Merge branch 'hotfix/3627'