Improve package.json description

Description was lacking. Took this description from the README.

Tested: npm install
Change-Id: Ie9664a6bc9f3d6418c3e6ee63053ec643cc733f1
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/package.json b/package.json
index 2055895..68d2c25 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openbmc_browser_interface",
-  "description": "openbmc_browser_interface",
+  "description": "Web-based user interface for the OpenBMC firmware stack",
   "version": "0.0.1",
   "private": false,
   "repository": {