Added code examples to index.md

Author: Lua-Matlab-Python-R-J2EE

index.md

@@ -4,5 +4,18 @@
 #### This is h4 <h4>
 ##### This is h5 <h5>
 ###### This is h6 <h6>
+-------------------------------------------
 I added h1 to h6 tags in the index.md file
+-------------------------------------------
 ###### ![Image of Yaktocat](https://octodex.github.com/images/yaktocat.png)
+-------------------------------------------
+
+# javascript example
+``` javascript
+var myVar = "Heloooo!";
+```
+
+# matlab example
+```
+x = 0:pi/10:pi; y = sin(x); plot(x, y)
+```