Bot Builder Community GH pages v1

[stephanbisser]

I now created a first draft for our pages repo here.
@garypretty maybe we could use this issue here to gather things we want to include in a v1 of the page like docs, samples, tutorials so we can work on that?

You can view the website via https://botbuildercommunity.github.io/

cc @arafattehsin @jamesemann