Updated readme with instructions

Author: DanWahlin

readme.md

@@ -1,12 +1,39 @@
 Expense Manager with Angular and TypeScript
 ===============
 
-This application was originally written in JavaScript and then converted to
-TypeScript to show how TS can be used in Angular applications.
+This application demonstrates how Angular and TypeScript can be used together. It relies on a 
+ Node.js RESTful backend service. Note that the Node.js service relies on static data so
+ changes to data won't presist across node process restarts.
+
 
 The application uses:
 
 * Angular
 * TypeScript
+* Node.js
+
+# Usage
+
+1. Install global dependencies **if necessary**
+
+        npm install -g gulp-cli tsd
+
+2. Install node packages:
+
+        npm install
+
+3. Retrieve typescript definitions list
+
+        tsd reinstall -so
+
+4. Run gulp
+
+        gulp
+
+5. Launch the server
+
+        node server.js
+
+6. Open browser at <http://localhost:8000/>
 
 The application was written by [Dan Wahlin](http://twitter.com/danwahlin).