read fragment shader from file

src/main.c

@@ -1,10 +1,11 @@
-#include "args.h"
-#include "config.h"
-#include "forge.h"
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 
+#include "args.h"
+#include "config.h"
+#include "forge.h"
+
 int main(int argc, char **argv) {
   Parameters params;
   params = parse_args(argc, argv);