Update README.md

README.md

@@ -2,6 +2,8 @@
 
 Pixel is an integrated developer environment (IDE) for p5js. It includes a timeline debugger, vector drawing tool, and runs as a desktop application on Mac, Windows, and Linux.
 
+## Features
+
 Pixel helps you debug complicated animations by saving snapshots of your sketch. You can click on any frame in the timeline to see what value your variables are at that point, which is useful for debugging.
 
 <video src="https://user-images.githubusercontent.com/148144/122808831-fb69b880-d292-11eb-8514-ee0ed540c785.mov"></video>
@@ -11,6 +13,14 @@ Pixel also includes a vector drawing tool that lets you draw shapes with your mo
 <video src="https://user-images.githubusercontent.com/148144/122808894-0b819800-d293-11eb-904a-0807c90f8c2b.mov"></video>
 
 
+## Development
+
+To run Pixel in development mode, clone the repo and run:
+
+```shell
+$ npm install
+$ npm start
+```
 
 # Builds and Releases