doc

Author: bolner

protocol_doc/README.md

@@ -243,10 +243,10 @@ Since the default port is `50000`, the socket file will most likely be:
 `/tmp/.s.monetdb.50000`. The client must either be run under the same user as
 the server, or it needs to have read/write permissions to the socket file.
 
-This case is the same as the TCP/IP connection, with a tiny difference at the very
-beginning. When connecting to a Unix domain socket, then the client has to first
-write a single byte (without any packet frame!) with value 0x30 or the chracter
-zero '0'.
+The authentication is the same as for a TCP/IP connection, with a tiny difference
+at the very beginning. When connecting to a Unix domain socket, then the client has
+to first write a single byte (without any packet frame!) with value 0x30 (that is the
+character zero '0').
 
 After that, the server will respond with the `server challenge` and everything is the
 same as in the TCP/IP case.