added abspath check

Author: mahajanleena1995

index.php

@@ -25,6 +25,9 @@
 	along with this program; if not, write to the Free Software
 	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
+if ( ! defined( 'ABSPATH' ) ) {
+	exit; // Exit if accessed directly.
+}
 if ( ! class_exists( 'RichSnippets' ) ) {
 	/**
 	 * RichSnippets