Reorganize content in README
Reorganize content in README
googlearchive/gcm-playground,googlearchive/gcm-playground,wjarek/gcm-playground,wjarek/gcm-playground,wjarek/gcm-playground,wjarek/gcm-playground,googlearchive/gcm-playground,googlearchive/gcm-playground,wjarek/gcm-playground,wjarek/gcm-playground,googlearchive/gcm-playground,wjarek/gcm-playground,googlearchive/gcm-playground,googlearchive/gcm-playground