diff --git a/lib/util/parsers.js b/lib/util/parsers.js
index d49a834..d310d2f 100644
--- a/lib/util/parsers.js
+++ b/lib/util/parsers.js
@@ -2,14 +2,20 @@ import yamlit from 'js-yaml'
 import markdownit from 'markdown-it'
 import markdownAnchors from 'markdown-it-anchor'
 
-export const mdParser = ({ highlight, use }, { anchorsLevel }) => {
-  const parser = markdownit({
+export const mdParser = ( md , { anchorsLevel }) => {
+
+  var config = {
     preset: 'default',
     html: true,
     typographer: true,
     linkify: true,
-    highlight
-  })
+  }
+  
+  if (md.extend !== undefined ){
+    md.extend(config)
+  }
+
+  const parser = markdownit(config)
 
   const plugins = [
     [
@@ -18,7 +24,7 @@ export const mdParser = ({ highlight, use }, { anchorsLevel }) => {
         level: [anchorsLevel]
       }
     ]
-  ].concat(use)
+  ].concat(md.plugins)
 
   plugins.forEach(plugin => {
     Array.isArray(plugin)
@@ -26,6 +32,10 @@ export const mdParser = ({ highlight, use }, { anchorsLevel }) => {
       : parser.use(plugin)
   })
 
+  if (md.customize !== undefined ){
+    md.customize(parser)
+  }
+
   return parser
 }