Typo in readme command

sitefinitysteve · sitefinitysteve · commit 98b00ccf9d0e · 2016-09-15T09:46:44.000-04:00
diff --git a/README.md b/README.md
@@ -73,5 +73,5 @@ public getCheckProp() {
 
 ## Demo Setup
 * npm install tns-platform-declarations
-* preparedemo
+* npm preparedemo
 * npm run demo.ios
