v2.1

Fixes errors in building Docker images in chapter 5 & 7 exercises as reported in #25

Second Edition

This commit updates all the examples used for the second edition

What's Changed

• add the python chat bot by @SathyaBhat in #16
• fix retrieving chat_sender_id and person_id by @akozyreva in #17
• Clean up code by @SathyaBhat in #19
• Chapter 4 - clean up code, switch to f-strings, remove tokens, and unwanted fluff by @SathyaBhat in #20
• Clean up some of the code used in Chapter 5 by @SathyaBhat in #21
• Chapter 6 & 7 revamp by @SathyaBhat in #22
• add workflow by @SathyaBhat in #23

New Contributors

• @akozyreva made their first contribution in #17

Full Changelog: v1.1...v2.0

v1.1 - clean up project structure, add readme, add zip files

clean up structure (#13)

* clean up structure

* add readme

* move readme

* add readmes for all folders

* more readme changes