Since 0.9, @lang syntax is still available as fallback but will soon be deprecated.
Because of that, new syntax should be adopted once 0.9 becomes the
baseline requirements for nvim-treesitter
- update health check
- update doc
```
(#downcase! "language")
```
downcase! will ensure the metadata value for the specified key will be
downcased. If the value is a node, it will downcase the text specified
by the node.
```
(#downcase! @node "key")
```
You can also namespace the key with a specific capture, similar to how
you can call `(#set! @node "key" "value")`
* Comment: use `@combined` to create just one tree per buffer
There is no need to create a tree per line/block for comments.
Should fix https://github.com/nvim-treesitter/nvim-treesitter/issues/1251
* Add injections for scss
* Fix jsonc
* Combine jsdoc
