Added syntax highlighting

README.md

@@ -14,40 +14,47 @@ Download the PHP library from Github, and require in your script like so:
 ### Creating Request
 So you're probably wondering how using Unicorn makes creating requests in PHP easier, let's look at a working example:
 
-    $response = Unicorn::post("http://httpbin.org/post", array( "Accept" => "application/json" ),
-      array(
-        "parameter" => 23,
-        "foo" => "bar"
-      )
-    );
+```php
+$response = Unicorn::post("http://httpbin.org/post", array( "Accept" => "application/json" ),
+  array(
+    "parameter" => 23,
+    "foo" => "bar"
+  )
+);
+```
 
 ### File Uploads
 To upload files in a multipart form representation simply place an @ symbol before the path:
 
-    $response = Unicorn::post("http://httpbin.org/post", array( "Accept" => "application/json" ),
-	 array(
-	    "file" => "@/tmp/file.txt"
-	  )
-	);
+```php
+$response = Unicorn::post("http://httpbin.org/post", array( "Accept" => "application/json" ),
+  array(
+    "file" => "@/tmp/file.txt"
+  )
+);
+ ```
  
 ### Custom Entity Body
 Sending a custom body such as a JSON Object rather than a string or form style parameters we utilize json_encode for the body:
-
-	$response = Unicorn::post("http://httpbin.org/post", array( "Accept" => "application/json" ),
-	  json_encode(
-	    array(
-	      "parameter" => "value",
-	      "foo" => "bar"
-	    )
-	  )
-	);
+```php
+$response = Unicorn::post("http://httpbin.org/post", array( "Accept" => "application/json" ),
+  json_encode(
+    array(
+      "parameter" => "value",
+      "foo" => "bar"
+    )
+  )
+);
+```
 
 ### Request Reference
-    Unicorn::get($url, $headers = array());
-    Unicorn::post($url, $headers = array(), $body = NULL);
-    Unicorn::put($url, $headers = array(), $body = NULL);
-    Unicorn::patch($url, $headers = array(), $body = NULL);
-    Unicorn::delete($url, $headers = array());
+```php
+Unicorn::get($url, $headers = array());
+Unicorn::post($url, $headers = array(), $body = NULL);
+Unicorn::put($url, $headers = array(), $body = NULL);
+Unicorn::patch($url, $headers = array(), $body = NULL);
+Unicorn::delete($url, $headers = array());
+```
   
 `url`
 Endpoint, address, or uri to be acted upon and requested information from.