Actually commit the README.md.

Oops.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

README.md

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+Strawman protocol for lightning channels.
+
+The wire protocol is documented in [lightning.proto](lightning.proto)
+(a [protobuf](https://developers.google.com/protocol-buffers/)
+definition file).
+
+There are command line utilities to create and process various packets
+in [test-cli](test-cli/HOWTO-USE.md).
+
+This is very much a testbed and work in progress; expect All The
+Things to change, all the time.
+
+Cheers,
+
+Rusty.