Docs readability and style

[icecream17]

low priority: even just copying or linking to Atom's docs would probably be more useful

Pulsar's github docs

General ideas:

• basically Grammarly advertisement, improve tone and grammar and word choice etc.

Examples of possible improvements:

• You can replace matches using the replace textbox. For example, if you
  wanted to replace every "Scott" with "Dragon", you would enter "Scott"
  and "Dragon" into the find and replace textboxes respectively, then press
  "Replace All".

• So that's pretty cool, but what if there is something the language package didn't include

• 💥 just fill that bad boy out and you have yourself a snippet.

[icecream17]

Idea: amazing quote:

🤯 Ctrl+LeftArrowKey moves the cursor one word left.

Idea: interactive tutorial in editor:
Idea inspired by https://svelte.dev/tutorial/dynamic-attributes. This is even lower priority because it's harder and more complicated.