README: add checkbox to BOLT lightningnetwork#2 compatibility

Fixes lightningnetwork#137!!!

Fixes lightningnetwork#380, lightningnetwork#297, lightningnetwork#194, lightningnetwork#137.

README.md

@@ -37,9 +37,7 @@ implementation of the specification are still a work-in-progress. With that
 said, `lnd` the current status of `lnd`'s BOLT compliance is:
 
   - [X] BOLT 1: Base Protocol
-  - [ ] BOLT 2: Peer Protocol for Channel Management
-     * `lnd` has not yet integrated full channel re-transmission upon
-        reconnection
+  - [X] BOLT 2: Peer Protocol for Channel Management
   - [X] BOLT 3: Bitcoin Transaction and Script Formats
   - [X] BOLT 4: Onion Routing Protocol
   - [X] BOLT 5: Recommendations for On-chain Transaction Handling