Add re-review text to Contributing Doc
Add re-review text to Contributing Doc

Explicitly state that Pull Requests with changes should ask for a re-review when those changes have been made. This will help the review workflow since they only need to keep track of PRs in the "review required " state.
bisq-network/exchange,bisq-network/exchange,bitsquare/bitsquare,bitsquare/bitsquare