Update dependencies to fix audit breakage.

Fixes #50.

Author: jkinkead

package-lock.json

@@ -27,7 +27,7 @@
   "homepage": "https://github.com/peerigon/markdown-loader",
   "dependencies": {
     "loader-utils": "^1.2.3",
-    "marked": "^0.6.0"
+    "marked": "^0.7.0"
   },
   "devDependencies": {
     "ava": "^1.0.1",