Update README.md

README.md

@@ -431,8 +431,10 @@ We are now back in our `build environment` after setting up our `live system` an
           initrd /casper/initrd
       }
       
-      menuentry "Test memory Memtest86+ (BIOS)" {
-         linux16 /install/memtest86+
+      grub_platform
+      if [ "\$grub_platform" = "efi" ]; then
+      menuentry 'UEFI Firmware Settings' {
+          fwsetup
       }
       
       menuentry "Test memory Memtest86 (UEFI, long load time)" {
@@ -442,6 +444,11 @@ We are now back in our `build environment` after setting up our `live system` an
           loopback loop /install/memtest86
           chainloader (loop,gpt1)/efi/boot/BOOTX64.efi
       }
+      else
+      menuentry "Test memory Memtest86+ (BIOS)" {
+          linux16 /install/memtest86+
+      }
+      fi
       EOF
       ```