Clean up README, move licensing to dep5 file

Change-Id: Ibb71bd6d86604a7bf300832f30e75935d95ffa9e
diff --git a/.reuse/dep5 b/.reuse/dep5
index 1bd17d1..cd236fa 100644
--- a/.reuse/dep5
+++ b/.reuse/dep5
@@ -1,5 +1,5 @@
 Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 
-Files: VERSION .gitreview chain.ipxe patches/*
+Files: README.md VERSION chain.ipxe patches/*
 Copyright: 2020 Open Networking Foundation
 License: Apache-2.0