update development instructions

README.md

@@ -56,25 +56,22 @@ To run this app in development mode:
 git clone https://github.com/public-accountability/oligrapher
 cd oligrapher
 npm install
-npm run dev-server
+npm run dev
+npm run serve
 ```
 
-Start the webpack dev server : `npm run dev-server`
-
-Then point your browser to [localhost:8090/dev.html](http://localhost:8090/dev.html) to view a demo graph.
+Then point your browser to [localhost:8000](http://localhost:8000) to view a blank graph.
 
 Also available:
 
-`/index.html` blank map
-`/editor.html` example map in editor mode
-`/embedded.html` embedded-mode
-`/article.html` an map in embedded-mode using an inframe
+`/exxon.html` & `/dev.html` - example maps
+`/dev.html`  - larger map with annotations
+`/article.html` - map in embedded-mode using an inframe
 
+Production build: `npm run build`
 
 Development build: `npm run build-dev`
 
-Production build: `npm run build-prod`
-
 Run tests: `npm test`
 
 Data Schema