Bump marked from 0.6.2 to 0.7.0

Bumps [marked](https://github.com/markedjs/marked) from 0.6.2 to 0.7.0.
- [Release notes](https://github.com/markedjs/marked/releases)
- [Changelog](https://github.com/markedjs/marked/blob/master/release.config.js)
- [Commits](markedjs/marked@v0.6.2...v0.7.0)

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -15,7 +15,7 @@
     "body-parser": "^1.18.3",
     "cors": "^2.8.5",
     "express": "^4.16.4",
-    "marked": "^0.6.2",
+    "marked": "^0.7.0",
     "mongodb": "^3.2.3",
     "vue": "^2.5.11",
     "vue-resource": "^1.5.1"