doc(readme): improve documentation

Author: klarkc

template/README.md

@@ -2,28 +2,35 @@
 
 {{ description }}
 
+## Folder structure
+
+1. `client`: Vue client files
+2. `common`: Common client and server model files
+3. `server`: Loopback server files
+4. `test`: Unit and E2E test files
+
 ## Installation
 
 ```
   $ npm install
 ```
 
-## Testing
+## Linting
 
 ```
-  $ npm test
+  $ npm run lint
 ```
 
-## Running Development
+## Testing
 
 ```
-  $ npm run dev
+  $ npm test
 ```
 
-## Running Production (after build)
+## Running Development Server (API and Client)
 
 ```
-  $ npm start
+  $ npm run dev
 ```
 
 ## Build to ./build