Add transition-timing-function mixin to docs
Improve badges mixinability
rm #1969 from browser bugs list per outcome of investigation
Remove ./ from package.json paths
Remove ./ from _config.yml paths
Merge pull request #12971 from ZDroid/config-yml

Remove ./ from _config.yml paths
Merge pull request #12970 from ZDroid/package.json-pa

Remove ./ from package.json paths
Merge pull request #12969 from ZDroid/badge-mixin

Improve badges mixinability
Merge pull request #12962 from BBosman/transitions-count

Add transition-timing-function mixin to docs