Add TLDR Copy

[jwafu]

Need to add the TLDR Copy to the Overview index + to its secondary page:

https://docs.google.com/document/d/1DAkppi6VpgRivf98EOqKWNnzJi78iVYPlQYDfsK1ikE

• [x] add new section to homepage
• [x] add new page in folder
• [x] add to sidebar for navigation and correct dates

[jwafu]

@connor-ohearn-at-pieces this is live and should be updated for you :)