Bugfix and doc improvement

• A potential security bug has been fixed (#17)
• A lot of improvement in the documentation

Some small fixes in the UI

To run this release, see the README.md

With Axum

This release is a rewrite of the previous release with axum instead of tide. Also the bug where the good bye message might be sent more than once has been fixed in this release. Finally, many internal improvements have also been made on the Rust code.

It sends message back now

This is a small update. In this update the bot sends a message back to user through DeltaChat after authentication.

v0.0.0

This is the first working version with some documentation. It is already useful but not complete yet. Also the code might not be idiomatic.