fix(package): update highlight.js to version 9.10.0

https://greenkeeper.io/

Author: greenkeeper[bot]

package.json

@@ -10,7 +10,7 @@
   "dependencies": {
     "adm-zip": "0.4.7",
     "handlebars": "4.0.6",
-    "highlight.js": "9.9.0",
+    "highlight.js": "9.10.0",
     "markdown-it": "8.3.0",
     "sqlite3": "3.1.8",
     "temp": "0.8.3"