Fixing a few typos on homepage (#5954)
Fixing a few typos on homepage (#5954)

I stumbled upon this site recently when researching some browser automation tools, and these are a few typos I encountered on the homepage.

"therefor" -> "therefore"
"huge of variety of" -> "huge variety of"
"shadow shadow DOM" -> "shadow DOM"
webdriverio/webdriverio,webdriverio/webdriverio,webdriverio/webdriverio