Add parse method to Shortcode class

Shortcode.php

@@ -286,6 +286,17 @@ public function compile($content)
         return preg_replace_callback("/{$pattern}/s", [&$this, 'render'], $content);
     }
 
+    /**
+     * Parse the given content.
+     * 
+     * @param  string $content
+     * @return void
+     */
+    public function parse($content)
+    {
+        return $this->compile($content);
+    }
+
     /**
      * Render the current calld shortcode.
      *