diff --git a/demo/spring-2018.html b/demo/spring-2018.html
index dda5cc52d62..c9fb8bda097 100644
--- a/demo/spring-2018.html
+++ b/demo/spring-2018.html
@@ -56,6 +56,8 @@
 
 # Header1
 
+Some text in our markdown file
+
 ```{r}
 library(feather)
 library(ggplot2)
@@ -89,6 +91,7 @@
 ```
 
 ```{js}
+var a = "hello"
 $('.title').remove()
 ```
 
@@ -113,8 +116,10 @@
   function(ace, langTools, katexPreviewer, highlighter, TexCompleter, Spellchecker, SpellcheckerPopup) {
     var editor = ace.edit("editor");
     editor.$blockScrolling = Infinity;
+    // editor.setTheme("ace/theme/monokai");
     var session = editor.getSession();
     session.setMode("ace/mode/markdown");
+    //alert("Mode Set");
     session.setUseWorker(true);
 
     // SpellcheckerPopup.setup(editor);
@@ -244,7 +249,7 @@
 });
 </script>
 <span id = "highlightInfo"></span>
-<span id="formula"><span>
+<span id="formula"></span>
 
 </body>
 </html>
diff --git a/lib/ace/mode/markdown_highlight_rules.js b/lib/ace/mode/markdown_highlight_rules.js
index 03f51bee62c..9d452bd1040 100644
--- a/lib/ace/mode/markdown_highlight_rules.js
+++ b/lib/ace/mode/markdown_highlight_rules.js
@@ -39,6 +39,7 @@ var XmlHighlightRules = require("./xml_highlight_rules").XmlHighlightRules;
 var HtmlHighlightRules = require("./html_highlight_rules").HtmlHighlightRules;
 var CssHighlightRules = require("./css_highlight_rules").CssHighlightRules;
 var RHighlightRules = require("./r_highlight_rules").RHighlightRules;
+var PythonHighlightRules = require("./python_highlight_rules").PythonHighlightRules;
 
 var escaped = function(ch) {
     return "(?:[^" + lang.escapeRegExp(ch) + "\\\\]|\\\\.)*";
@@ -47,7 +48,7 @@ var escaped = function(ch) {
 function github_embed(tag, prefix) {
     return { // Github style block
         token : "support.function",
-        regex : "^\\s*```" + tag + "\\s*$",
+        regex : "^\\s*```{" + tag + "}\\s*$",
         push  : prefix + "start"
     };
 }
@@ -78,6 +79,8 @@ var MarkdownHighlightRules = function() {
        github_embed("xml", "xmlcode-"),
        github_embed("html", "htmlcode-"),
        github_embed("css", "csscode-"),
+       github_embed("python", "pycode-"),
+       github_embed("r", "rcode-"),
     { // Github style block
         token : "support.function",
         regex : "^\\s*```\\s*\\S*(?:{.*?\\})?\\s*$",
@@ -228,6 +231,12 @@ var MarkdownHighlightRules = function() {
        next  : "pop"
     }]);
 
+    this.embedRules(PythonHighlightRules, "pycode-", [{
+       token : "support.function",
+       regex : "^\\s*```",
+       next  : "pop"
+    }]);
+
     this.normalizeRules();
 };
 oop.inherits(MarkdownHighlightRules, TextHighlightRules);