Add more package.json metadata

Author: Evan Jacobs

package.json

@@ -4,8 +4,10 @@
     "version": "4.0.0",
     "license": "MIT",
     "contributors": [
-        "Evan Jacobs <[email protected]>"
+        "Evan Jacobs <[email protected]> (http://yaycmyk.com)"
     ],
+    "repository": "https://github.com/enigma-io/generator-enigma",
+    "bugs": "https://github.com/enigma-io/generator-enigma/issues",
     "keywords": [
         "yeoman",
         "yeoman-generator",