[ADD] added comments to startup_scene.h

src/scenes/startup_Scene.h

@@ -12,10 +12,42 @@ namespace scene
 		scene::Scenes return_value = scene::Scenes::STARTUP;
 
 	public:
+		/**
+		 * @brief Constructor of the class Startup_Scene
+		 * 
+		 */
 		Startup_Scene();
+
+		/**
+		 * @brief 
+		 * 
+		 * @param window
+		 * @return 
+		 */
 		Scenes start(GLFWwindow* window) override;
+
+		/**
+		 * @brief 
+		 * 
+		 */
 		void render() override;
+
+		/**
+		 * @brief This method updates all the components on the window
+		 * 
+		 * @param window Window it updates
+		 */
 		void update(GLFWwindow* window) override;
+
+		/**
+		 * @brief Listener for key events
+		 * 
+		 * @param window Window it listens to for key events
+		 * @param key Key of event that is activated
+		 * @param scancode Code of Key
+		 * @param action 
+		 * @param mods
+		 */
 		void onKey(GLFWwindow* window, int key, int scancode, int action, int mods) override;
 	};
 }