More work on the user guide

NothinFancy/src/include/nf/Config.h

@@ -6,7 +6,7 @@ namespace nf {
 	 * 
 	 * This struct contains basic information about the engine's window.
 	 * 
-	 * @todo Add more things here such as mouse sensativity and FPS target?
+	 * @todo Add more things here such as mouse sensitivity and FPS target?
 	*/
 	struct Config {
 	public:

NothinFancy/src/include/nf/Utility.h

@@ -39,6 +39,7 @@ bool Debug::m_timerStarted = false
 #define NFSleepMS(x) std::this_thread::sleep_for(std::chrono::milliseconds(x))
 /**
 * In debug mode, this prints a nicely-formatted message complete with a timestamp.
+* It takes in either a `const char*` or `std::string`.
 * 
 * In release mode, this does nothing.
 */