fix: remove description field requirement (#30)

Fixes: #27

Related: #22

BREAKING CHANGE

Author: feross

lib/clean.js

@@ -18,7 +18,7 @@ module.exports = function clean (doc) {
     doc = normalize(doc)
     // add props from lastest release that are absent from the top level
     pkg = Object.assign({}, doc.versions[latest], doc)
-  } else if (doc.name && doc.description) {
+  } else if (doc.name) {
     // this is a basic object, i.e. a package.json file
     pkg = doc
   } else {