Update README

README.md

@@ -2,8 +2,34 @@
 
 A Firefox/Chrome extension for the [2FAuth](https://github.com/Bubka/2FAuth) project.
 
-### Development Requirements
+## Development 
+
+### Requirements
 
 - [NodeJS](https://nodejs.com) v18
 - [NPM](https://npmjs.com) v8 (included with Node)
 
+### Commands
+#### Dev builds
+```shell
+# Build all dev versions
+npm run build
+
+# Build Chrome dev version
+npm run build:chrome
+
+# Build Firefox dev version
+npm run build:firefox
+```
+
+#### Distribution builds
+```shell
+# Build all distribution versions
+npm run dist
+
+# Build Chrome distribution version
+npm run dist:chrome
+
+# Build Firefox distribution version
+npm run dist:firefox
+```