docs: website for LiquidJS

docs/source/tutorials/contribution-guidelines.md

@@ -0,0 +1,39 @@
+---
+title: Contribution Guideline
+---
+
+## Show Me Your Code
+
+**Code Style**: LiquidJS applies [standard](https://github.com/standard/eslint-config-standard) and [@typescript-eslint/recommended](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/src/configs/recommended.json) rules, make sure it's still valid before commit:
+
+```bash
+npm run lint
+```
+
+**Testing**: Make sure test cases pass with your patch merged:
+
+```bash
+npm test
+```
+
+**Commit Message**: Please align to [the Angular Commit Message Guidelines](https://github.com/angular/angular.js/blob/master/DEVELOPERS.md#commits), especially note the [type identifier](https://github.com/angular/angular.js/blob/master/DEVELOPERS.md#type), on which semantic-release bot depends.
+
+## Star on Github 👉 [![harttle/liquidjs](https://img.shields.io/github/stars/harttle/liquidjs?style=flat-square)][liquidjs]
+
+This is the easiest way to support us: boost its rank and expose it to more people, which in turn makes it better.
+
+## Financial Support
+
+LiquidJS is Open Source and Free and **without** capitalists support and **without** any ADs. To help it live and thrive, consider contribute on [Open Collective][oc] or [Patreon][pt]. To acknowledge your contribution, your name and avatar will be listed here and on [Github README][liquidjs].
+
+<object type="image/svg+xml" data="https://opencollective.com/liquidjs/tiers/backer.svg?avatarHeight=72"></object>
+
+[![Become a Patron!](../icon/[email protected])](https://www.patreon.com/bePatron?u=32321060)
+
+[oc]: https://opencollective.com/liquidjs/
+[pt]: https://www.patreon.com/harttle
+[shopify/liquid]: https://shopify.github.io/liquid/
+[caniuse-promises]: http://caniuse.com/#feat=promises
+[pp]: https://github.com/taylorhakes/promise-polyfill
+[tutorial]: https://shopify.github.io/liquid/basics/introduction/
+[liquidjs]: https://github.com/harttle/liquidjs