added g to mg converter

src/convert_g_to_mg.c

@@ -0,0 +1,6 @@
+
+#include "convert_g_to_mg.h"
+
+double g_to_mg(double grams) {
+    return grams * 1000.0; // 1 gram = 1000 milligrams
+}

src/convert_g_to_mg.h

@@ -0,0 +1,13 @@
+
+#ifndef THEADMIRALS_CONVERT_G_TO_MG_H
+#define THEADMIRALS_CONVERT_G_TO_MG_H
+
+
+
+
+
+double g_to_mg(double grams);
+
+
+
+#endif //THEADMIRALS_CONVERT_G_TO_MG_H