message: added npm run build instruction
diff: @@ -62,7 +62,7 @@ function Flow({ nodes, edges, onNodesChange, onEdgesChange, onConnect }) {
  }
  ```
  -Before you start you need to install the React Flow dependencies via `npm install` and the ones of the examples `cd example && npm install`.
  +Before you start you need to build the project using `npm run build`. Then install the React Flow dependencies via `npm install` and the ones of the examples `cd example && npm install`.
  If you want to contribute or develop custom features the easiest way is to start the dev server:
  