Add documentation (#6)

* Import documentation from the wiki

* Minor style changes

* Add custom `CodeBlock` component with file name and playground button

* Update relative documentation links

* Add `SideBySide` component

* Update some code examples

* Add `Configuration` page

* Add `Editor Support` page

* Merge `Differences between Lua and JS` and `Limitations` pages to `Caveats`

* Add `API/Plugins` page

* Rewrite `Getting Started` page with focus on project install

* Remove `Project Design Goals` page

* Add `Type-directed emit` section to `Caveats` page

* Update API documentation

* Create `Advanced` category

* Don't use level 1 headings

* Add `Declarations` section to `Getting Started` page

* Minor improvements

* Use admonitions

* Improve title annotations on `Writing Declarations` page

* More formatting on Writing Declarations page more consistent

* Rewrite few sections on Writing Declarations page

* Reword local/global install note

Author: ark120202

README.md

@@ -4,13 +4,13 @@ This website is built using [Docusaurus 2](https://v2.docusaurus.io/), a modern
 
 ### Installation
 
-```
+```bash
 $ npm install
 ```
 
 ### Local Development
 
-```
+```bash
 $ npm run start
 ```