README: add example usage with OpenBMC

1. Add nodejs requirement;
2. Remove the out dated content;
3. Add example usage with OpenBMC

Change-Id: I66f418ed53ccf28d845416790de8fcca8ff2fe98
Signed-off-by: Lei YU <mine260309@gmail.com>
diff --git a/README.md b/README.md
index d507ef4..3304425 100644
--- a/README.md
+++ b/README.md
@@ -4,16 +4,22 @@
 # OpenBMC
 TODO: Write a project description
 
+## Requirement
+nodejs
+npm
+
 ## Installation
 `npm install`
 
-## Minify vendors
-`npm run-script minifyvendors`
-
-## Distribution
-`npm run-script distribution`
-
 ## Running
-'npm run-script serve'
+`npm run-script server`
 
-This will run it locally in http://localhost:8080
+This will run it locally in `http://localhost:8080`.
+
+## Example Usage with OpenBMC
+1. Browse to `https://<bmc-ip>` and bypass the secure warning.
+You will see a JSON response with `Login required` message.
+2. In the same session, navigate to `http://localhost:8080`. Enter the BMC
+IP, Username and Password (defaults: `root`/`0penBmc`).
+
+Now you are logged in.