update man page for v0.6.6

Author: x42

x42-tuna.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.48.1.
-.TH X42-TUNA "1" "May 2023" "x42-tuna version 0.6.5" "User Commands"
+.TH X42-TUNA "1" "June 2024" "x42-tuna version 0.6.6" "User Commands"
 .SH NAME
 x42-tuna \- JACK Music Instrument Tuner
 .SH SYNOPSIS