Add direct link to binary protocol

Author: glopesdev

README.md

@@ -1,6 +1,6 @@
 # harp-python
 
-A low-level interface to data collected with the [Harp](https://harp-tech.org/) binary protocol.
+A low-level interface to data collected with the [Harp binary protocol](https://harp-tech.org/protocol/BinaryProtocol-8bit.html).
 
 ## How to install