Add initiateWithdraw function

src/withdrawMoney.c

@@ -1,4 +1,14 @@
-#include <stdio.h>
+#include "withdrawMoney.h"
+
+void initiateWithdraw(float amountToWithdraw, float availableAccountBalance) {
+    float remainingAccountBalance = (availableAccountBalance - amountToWithdraw);
+
+    updateAccountBalance(remainingAccountBalance);
+    printf("You have successfully withdrawn %f €.\n", amountToWithdraw);
+    printf("Remaining account balance: %f €\n\n", remainingAccountBalance);
+    printf("Press any key to return to home page: ");
+    // go to home page
+}
 
 void withdraw() {
     float amountToWithdraw;