chore: setup markdown formatting (#3224)

* chore(deps): upgrade prettier to v1.8.2

* chore: setup lint-docs script

* docs: add `<!-- prettier-ignore -->`s

* docs: format docs

* Revert "docs: format docs"

This reverts commit 6dba903987dddc498cb589ca311905f25b6aee53.

* chore(prettierrc): set `--no-prose-wrap`

* docs: format docs

* Revert "docs: format docs"

This reverts commit 139bd744b6921916be8fac4fa3bab83bae5d12df.

* docs: tweak

* docs: format docs

* chore: rename .prettierrc

* chore: rename back to .prettierrc

* chore: split out third-party

* refactor: fix linting

* chore: do not split out third-party on website

docs/precommit.md

@@ -21,29 +21,24 @@ and add this config to your `package.json`:
     "precommit": "lint-staged"
   },
   "lint-staged": {
-    "*.{js,json,css}": [
-      "prettier --write",
-      "git add"
-    ]
+    "*.{js,json,css}": ["prettier --write", "git add"]
   }
 }
 ```
+
 There is a limitation where if you stage specific lines this approach will stage the whole file after regardless. See this [issue](https://github.com/okonet/lint-staged/issues/62) for more info.
 
 See https://github.com/okonet/lint-staged#configuration for more details about how you can configure lint-staged.
 
-
 ## Option 2. [pre-commit](https://github.com/pre-commit/pre-commit)
 
 Copy the following config into your `.pre-commit-config.yaml` file:
 
 ```yaml
-
     -   repo: https://github.com/prettier/prettier
         sha: ''  # Use the sha or tag you want to point at
         hooks:
         -   id: prettier
-
 ```
 
 Find more info from [here](http://pre-commit.com).