Update README.md

Author: guym4c

README.md

@@ -1,3 +1,5 @@
 # java-tftp
 
-A client and server that implements the TFTP protocol over UDP. There is no support for error handling other than file-not-found errors, and no support handling datagram duplication in the network.
+A client and server that implements the [TFTP](https://www.ietf.org/rfc/rfc1350.txt) protocol over UDP. There is no support for error handling other than file-not-found errors, and no support handling datagram duplication in the network.
+
+Due to the nature of TFTP, the client and server are extremely similar and therefore share almost all code. The server will start a new thread for each incoming connection.