refactoring: commend a function

src/main/c/Georg/tictactoe.c

@@ -149,6 +149,11 @@ void printBoard(){
     printf("\n");
 }
 
+/**
+ * Get a the user input and parse it.
+ * @param input
+ * @return a array with the x and y direction where the user wants to set the marker.
+ */
 int* getMarkerParameters( char* input ){
     int* array = (int*)malloc(2 * sizeof(int));