Add info to README on how to get the chat ID

README.md

@@ -62,5 +62,6 @@ You'll have to setup a few things
 
 - Create a Telegram bot using @BotFather and get the API key, and message ID with you
 - Provide those values using `TELEGRAM_TOKEN` and `TELEGRAM_CHAT_ID`
+  - To get the `TELEGRAM_CHAT_ID`, send a message to your bot and then access the following URL in your browser `https://api.telegram.org/bot[TELEGRAM_TOKEN]/getUpdates`. You'll see a message, and within that, the Chat ID to use
 - And host it on any server, like Heroku, and use the Heroku scheduler feature to call `rake morning`, `rake noon` and `rake evening`
 - Make sure to enable the Heroku worker is enabled