Update docs & add example for #14221

[skip sauce]
Fixes #14213: Rouge 1.6.1
Fix #14164: move Windows Phone 8 IE10 viewport bug workaround script to footer of pages
Merge pull request #14235 from twbs/doc-14221

Update docs & add example for #14221
Merge pull request #14258 from twbs/fix-14164

Move Windows Phone 8 IE10 viewport bug workaround script from head to footer