2017-12-01 TWILPosted on: December 01, 2017

http://tldr.sh (friendlier version of man on the command line)

In Github comments/PR descriptions, you can have collapsible sections that work pretty well for not cluttering the PR when you have multiple screenshots.

<details>
  <summary>Mobile Preview</summary>
  <img src="http://via.placeholder.com/350x150" />
</details>

Cloudflare has a super clever way of generating random hashes: