Discordbook

Added image support for books. Also cut down on unused requirements and updated README.

Important discord.py update to fix a breaking error. Also updated README to include real documentation.

Removed excess print statements

Changed required Python version from >=3.6 to >=3.5

Added a new feature to support easier lexicographical ordering of content.

Fixed small typos with page turning and added some additional functions to Chapter, allowing chapters to be edited post-creation more easily.