add SlotGuard doc

include/td/misc/SlotGuard.h

@@ -5,11 +5,18 @@
 namespace td {
 namespace utils {
 
+/**
+ * \brief Wrapper class to automatically disconnect from a Signal on object destruction
+ * \sa Signal
+ */
 class SlotGuard {
   private:
 	std::vector<std::function<void()>> m_Deleters;
 
   public:
+	/**
+	 * \brief Connect a signal to a function (with the same signature)
+	 */
 	template <typename... Args>
 	void Connect(Signal<Args...>& a_Signal, const typename Signal<Args...>::CallBack& a_Callback) {
 		a_Signal.Connect(a_Callback);