package: add the "repository" section to the package.json file

so that `npm docs eson` works as expected

package.json

@@ -2,6 +2,7 @@
     "name": "eson"
   , "version": "0.3.0"
   , "description": "Extended JSON - pluggable JSON logic for dates, includes, and more"
+  , "repository": { "type": "git", "url": "git://github.com/visionmedia/eson.git" }
   , "keywords": ["json", "config"]
   , "author": "TJ Holowaychuk <tj@vision-media.ca>"
   , "dependencies": {