Added information to the README.rst about the SYNC_URL environment variable and sync'ing with the Anki mobile apps. Fixes #7.
Added information to the README.rst about the SYNC_URL environment variable and sync'ing with the Anki mobile apps. Fixes #7.

dsnopek/anki-sync-server,socialpercon/anki-sync-server,dsnopek/anki-sync-server