Syntax highlighting for github

docs/HasManyExample.md

@@ -1,6 +1,6 @@
 has_many Example
 =================
-    :::php
+```php
 /*** TestPage.php ***/
 class TestPage extends Page {
 	public static $has_many=array(
@@ -29,3 +29,4 @@ has_many Example
 	
 	public static $default_sort='SortOrder';
 }
+```

docs/ManyManyExample.md

@@ -1,6 +1,6 @@
 many_many Example
 =================
-	:::php
+```php
 /*** TestPage.php ***/
 class TestPage extends Page {
 	public static $many_many=array(
@@ -41,3 +41,4 @@ many_many Example
 		'TestPages'=>'TestPage'
 	);
 }
+```