consolidate community section

- Closed #1009

README.md

@@ -171,15 +171,8 @@ Check out these projects our awesome community has created:
 - [CodeExpander](https://codeexpander.com) - A smart GitHub gist client with the TextExpander features
 - [`nef`](https://github.com/bow-swift/nef#-exporting-carbon-code-snippets) - Export multiple Carbon code snippets from `Xcode Playground`.
 - [`@carbonshbot`](https://t.me/carbonshbot) - A Telegram chatbot wich takes in a code snippet or gist URL and generates an Carbon image
-
-##### Libraries
-
 - [R `carbonate`](https://yonicd.github.io/carbonate/) - Iteratively manipulate image aesthetics in `R` and either open in Carbon or download directly.
 
-##### Textbooks
-
-- ["CS 101 - An Introduction to Computational Thinking"](https://itunes.apple.com/us/book/id1435714196) - a computer science textbook by Sarbo Roy.
-
 ## Authors
 
 Carbon is a project by: