Changed marked version to 0.5

Changed marked version to 0.5 August release for fixing rendering bugs.

Author: surya-prakash-susarla

bower.json

@@ -13,7 +13,7 @@
     "jquery": "components/jquery#~3.3",
     "jquery-typeahead": "~2.0.0",
     "jquery-ui": "components/jqueryui#~1.12",
-    "marked": "~0.4",
+    "marked": "~0.5",
     "MathJax": "^2.7.4",
     "moment": "~2.19.3",
     "preact": "https://unpkg.com/preact@^7.2.0/dist/preact.min.js",