Update README.md

Create README.md

Add indexes to database

Add start message. Ignore other commands

Handle todo lists by user

update DBHelper to include individual owners

modify 'done' code to personal pref

Add custom keyboard

Modify echobot to handle basic todo functions (+fixes)

Create a Database helper to work on example ToDo bot

Add URL quote encoding for body text

Use longpolling via timeout

Removing unused function

Acknowledging old messages

Initial commit of echobot and .gitignore file