doc(wiki): Updated "binding.gyp" files out in the wild (markdown)

Author: lloyd

"binding.gyp"-files-out-in-the-wild.md

@@ -12,4 +12,5 @@ To add to this page, just add the link to the project's `binding.gyp` file below
  * [ref](https://github.com/TooTallNate/ref/blob/master/binding.gyp)
  * [appjs](https://github.com/milani/appjs/blob/master/binding.gyp)
  * [nwm](https://github.com/mixu/nwm/blob/master/binding.gyp)
- * [bcrypt](https://github.com/ncb000gt/node.bcrypt.js/blob/master/binding.gyp)
+ * [bcrypt](https://github.com/ncb000gt/node.bcrypt.js/blob/master/binding.gyp)
+ * [node-memwatch](https://github.com/lloyd/node-memwatch/blob/master/binding.gyp)