Fixed typos

SourceFiles/Autokey.cpp

@@ -47,6 +47,7 @@ void Autokey::encodeSet(std::string key, std::string input){
 
 	//This will take a long time if the keyword in long
 	//Remove the last letter in the string until it is the same size as the input
+	//TODO: Why not just use substring?
 	while(key.size() > input.size()){
 		key.erase(key.end() - 1);
 	}