Fix instructions to include google maps api key
Fix instructions to include google maps api key

BraveAction/google-io-2014-compat,hubaoyu/google-io-2014-compat,18611480882/google-io-2014-compat,rahulparsani/google-io-2014-compat,lstNull/google-io-2014-compat,kzganesan/google-io-2014-compat,Al-Rasel/google-io-2014-compat