Merge pull request #100 from posthtml/greenkeeper-posthtml-0.9.0

Update posthtml to version 0.9.0 🚀

Author: Scrum

package.json

@@ -36,7 +36,7 @@
   "homepage": "https://github.com/posthtml/posthtml-cli#readme",
   "dependencies": {
     "globby": "^5.0.0",
-    "posthtml": "^0.8.7",
+    "posthtml": "^0.9.0",
     "posthtml-load-plugins": "^0.11.2",
     "yargs": "^4.7.1"
   },