added chapter on missing firmware, regulatory.db

README.md

@@ -42,4 +42,9 @@ qemu-nbd -d /dev/nbd0       # release device
   - a gpt partion table
   - a 310 MB partition for efi
   - a 50 GB partition for the operation system
-  - a partition with the remaining disk space for a luks container
+  - a partition with the remaining disk space for a luks containerapt install wireless-regdb
+
+#### Missing Firmware
+When the kernel reports missing
+- firmware, run `apt install firmware-linux`
+- regulatory.db, run `apt install wireless-regdb`