Update README with Slack info
Update README with Slack info

fvoges/rampup-control-repo-test,AzureCAT-GSI/control-repo,trlinkin/control-repo,npwalker/control-repo,fvoges/rampup-control-repo-test,AzureCAT-GSI/control-repo,drewablank/symlink,npwalker/control-repo,drewablank/symlink,trlinkin/control-repo