add markdown support

Author: ankushdutt

app.js

@@ -8,6 +8,7 @@ var express     = require("express")
     Blog        = require("./models/blog")
     Comment     = require("./models/comment")
     User        = require("./models/user")
+    marked      = require("marked")
 
 var indexRoutes = require("./routes/index")
 // var commentRoutes = require("./routes/comments")

package-lock.json

@@ -13,6 +13,7 @@
     "ejs": "^3.0.1",
     "express": "^4.17.1",
     "express-session": "^1.17.0",
+    "marked": "^0.8.0",
     "method-override": "^3.0.0",
     "mongoose": "^5.8.1",
     "passport": "^0.4.1",