Added links to Lark IDE

README.md

@@ -26,6 +26,7 @@ Most importantly, Lark will save you time and prevent you from getting parsing h
 
 - [Documentation @readthedocs](https://lark-parser.readthedocs.io/)
 - [Cheatsheet (PDF)](/docs/lark_cheatsheet.pdf)
+- [Online IDE (very basic)](https://lark-parser.github.io/lark/ide/app.html)
 - [Tutorial](/docs/json_tutorial.md) for writing a JSON parser.
 - Blog post: [How to write a DSL with Lark](http://blog.erezsh.com/how-to-write-a-dsl-in-python-with-lark/)
 - [Gitter chat](https://gitter.im/lark-parser/Lobby)

docs/index.md

@@ -34,6 +34,7 @@ $ pip install lark-parser
 * [Philosophy & Design Choices](philosophy.md)
 * [Full List of Features](features.md)
 * [Examples](https://github.com/lark-parser/lark/tree/master/examples)
+* [Online IDE](https://lark-parser.github.io/lark/ide/app.html)
 * Tutorials
     * [How to write a DSL](http://blog.erezsh.com/how-to-write-a-dsl-in-python-with-lark/) - Implements a toy LOGO-like language with an interpreter
     * [How to write a JSON parser](json_tutorial.md) - Teaches you how to use Lark