Add Wall of Browser Bugs entry for #13892

Closes #13892.
[skip sauce]
Merge pull request #14037 from twbs/close-13892

Add Wall of Browser Bugs entry for #13892
Docs: add missing example code code for `kbd` after #13351.
Merge pull request #14047 from twbs/kbd

Docs: add missing example code code for `kbd` after #13351.