docs: add dev and deploy info to readme

README.md

@@ -6,6 +6,25 @@ Cannabis dosing calculator, useful for making oils, tinctures, butters, etc.
 
 [https://cannabis-dosing.web.app](https://cannabis-dosing.web.app)
 
-#### License
+## Development
+
+```sh
+yarn
+yarn dev
+```
+
+The `dev` script will start a simple web server. Note there is no automatic reloading.
+
+## Deployment
+
+If you are deploying to firebase, run `firebase init` to configure the project, then run the deploy script.
+
+```sh
+yarn deploy
+```
+
+If deploying somewhere else simply deploy the `dist` path.
+
+## License
 
 MIT © [w33ble](https://github.com/w33ble)