Bump marked from 0.3.6 to 4.0.10 in /docs

Bumps [marked](https://github.com/markedjs/marked) from 0.3.6 to 4.0.10.
- [Release notes](https://github.com/markedjs/marked/releases)
- [Changelog](https://github.com/markedjs/marked/blob/master/.releaserc.json)
- [Commits](markedjs/marked@v0.3.6...v4.0.10)

---
updated-dependencies:
- dependency-name: marked
  dependency-type: direct:development
...

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

docs/package.json

@@ -36,7 +36,7 @@
     "intl": "^1.2.5",
     "intl-locales-supported": "^1.0.0",
     "json-loader": "^0.5.4",
-    "marked": "^0.3.5",
+    "marked": "^4.0.10",
     "raw-loader": "^0.5.1",
     "react-addons-perf": "^15.4.0",
     "react-docgen": "^2.14.1",