Update README.md

Author: adglare

README.md

@@ -1,10 +1,11 @@
 # Adblock Detection Script (JavaScript)
 JavaScript function to detect the presence of an ad blocker. More info in the blog post on [AdGlare Ad Server](https://www.adglare.com/kb/45/adblock-detection-script-incredibly-simple-and-effective).
 
-##Usage
+## Usage
 Include the JS file, and then call the function `hasAdblock`.
 
-##Example
+## Example
+`
 <script src='adblock-detection-script.js'></script>
 <script>
   if(hasAdblock()) {
@@ -13,3 +14,4 @@ Include the JS file, and then call the function `hasAdblock`.
     //do something
   }
   </script>
+`