Created Remove the extra save confirmation (markdown)

Remove-the-extra-save-confirmation.md

@@ -0,0 +1,13 @@
+This code was transferred from the Pokecommunity thread.
+
+Open `start_menu.c` and look for the function `SaveFileExistsCallback`
+
+```diff
+else
+    {
+-       ShowSaveMessage(gText_AlreadySavedFile, SaveConfirmOverwriteCallback);
++       sSaveDialogCallback = SaveSavingMessageCallback;
+    }
+
+    return SAVE_IN_PROGRESS;
+}