[css-regions] update figure markup
[css-shapes] fix figure markup
[css-shapes] typo
[css-values] Bikeshed\!

--HG--
rename : css-values/Overview.src.html => css-values/Overview.bs
extra : rebase_source : ef7fca1bf074472866d51a27ca0ff81f35f45234
[css-gcpm] add section on alternative syntax for running elements proposed by Bert Bos

--HG--
extra : rebase_source : 6bd1d1383516a67be405ff837593370acdb2ff2f