Added how to run in angular2-chat-example/README.md

Author: deadcee

Diff for: examples/angular2-chat-app/README.md

@@ -1 +1,9 @@
-Horizon Chat example using Angular2
+Horizon Chat example using Angular2
+
+
+Running this example
+
+1. Install horsizon: "npm install -g horizon"
+2. Install RethinkDB: https://rethinkdb.com/docs/install
+3. Run "horizon serve --dev" in this directory
+4. Open http://123.0.0.1:8181