Add '.njk' file type support.

[mrself]

Although you are free to use any file extension you wish for your Nunjucks template files, the Nunjucks community has adopted .njk.

Nunjucks official docs

[gxcodes]

Yes, I'm currently working with adonisjs which produce view templates with .njk extension. Adding this support will be very helpful.

[DJviolin]

I edited https://github.com/andres-risso/sublime-nunjucks cloned repo (which is works with ST3) to include .njk file support for myself: https://github.com/DJviolin/sublime-nunjucks

Feel free to use it if you want.

[connor11528]

@DJviolin I am getting an error downloading your package when I open sublime:

Error loading syntax file "Packages/Nunjucks Syntax/Nunjucks.tmLanguage": Wrong type for key begin expected string

[DJviolin]

Sorry, I'm not maintaining anymore with latest Sublime text versions. I switched to VS Code long ago.

[connor11528]

Okay cool, vs code has njk highlighting? heard a lot of good things..

https://twitter.com/Connor11528/status/924672676387479552

[DJviolin]

Off topic, but yeah, It's great. Much more solid then Atom and doesn't have any performance issues (this kept me to use Sublime when I started with Atom).

I use this extension for Nunjucks: https://marketplace.visualstudio.com/items?itemName=ronnidc.nunjucks

It's based on this extension.