Add Docs on `OAuth2Strategy({ scope, scopeSeperator })`

[blaskovicz]

Please add docs on the utilization of scope and scopeSeperator for the new OAuth2Strategy(options) constructor.

https://github.com/jaredhanson/passport-oauth2/blob/master/lib/strategy.js#L95
https://github.com/jaredhanson/passport-oauth2/blob/master/lib/strategy.js#L96

[abelosorio]

@dan-nl your commits include these docs. Are you planning to create a PR? or have you already?

Thanks

[dan-nl]

@abelosorio, the pr already exists, pr #93, but hasn’t been merged into this project yet. it looks like this repo no longer has an active maintainer.

[abelosorio]

That's too bad @dan-nl I think this repo is very used yet.

@jaredhanson is there anything I can help with? Or is there any reason why you decided to terminate this repo's maintenance?

Thanks