documentation

Pull request #881: feature/DEV-2457-7.0-D: Updated page grammar, formatting, image; libssh is suggested over libssh2.

Merge in WEB/documentation from feature/DEV-2457-7.0-D to release/7.0

* commit '612c988f26079d98ff642e4158671b72beb2b4d6':
  [DEV-2457] Updated: libssh is suggested over libssh2
  [DEV-2457] Updated grammar, formatting, and image