Makefile

- Added seperate stage to _create_ the `main.o` and then only later link with the intent of making an executable.
- This is BETTER because it means we could treat everything in the same way (nevermind a `main` or library)

scratch/Makefile

@@ -3,7 +3,11 @@ library:
 
 clean:
 	rm library.o
+	rm main.o
 	rm main
 
 main:
-	gcc main.c library.o -o main 
+	gcc -c main.c library.o -o main.o
+
+exec:
+	gcc main.o library.o -o main