Typos in http://docs.unity3d.com/Manual/webgl-building.html
-" and open it in your default brower" should be "default browser"
-"When you tick the “Development Build” checkbox, Unity will generate a
development builds" should be "a development build"
-"and “Fastest” enabled some additional optimizations, but" should be "enables some additional"
-Broken link: http://docs.unity3d.com/Manual/ReducingFileSize.html
-Example errors/wranings shows TODO

Typo in: http://docs.unity3d.com/Manual/webgl-gettingstarted.html
-"simply chose the webuild build target" should be "simply choose"
-The Unity 5 release calls WebGL "preview", the documentation page mentions "early access". This should be aligned to be the same.