Add shortcuts to wmiimenu.1, some other changes.

cmd/wmiimenu.1

@@ -3,26 +3,48 @@
 wmiimenu \- window manager improved 2 menu
 .SH SYNOPSIS
 .B wmiimenu
-.B \-s
-.I socketfile
+.RB [ \-v ]
 .SH DESCRIPTION
 .SS Overview
 .B wmiimenu
 is a generic, highly customizable, and efficient menu for the X Window System,
 originally designed for
 .BR wmii (1).
-It supports arbitrary, user defined menu contents, which get printed to stdout when selected.
+It supports arbitrary, user defined menu contents.
 .SS Options
 .TP
 .B \-v
 prints version information to stderr, then exits.
+.SS Keys 
+.B wmiimenu
+is completely keyboard controlled, these are the keys:
+.TP 2
+Any printable character:
+append the character to the text in the input field. This works as a filter:
+only items containing this text will be displayed.
+.TP 2
+Left/Right (C-p/C-n)
+select the previous/next item.
+.TP 2
+Tab (C-i)
+copy the selected item to the input field.
+.TP 2
+Enter (C-j)
+confirm selection and quit.
+.TP 2
+Escape (C-[)
+quit without selecting an item.
+.TP 2
+Backspace (C-h)
+remove enough characters from the input field to change its filtering effect.
+.TP 2
+C-u
+remove all characters from the input field.
 .SS Customization
 .B wmiimenu
-is customized by feeding it a list of newline-separated items from stdin.
+is customized by providing it a list of newline-separated items from stdin on startup.
+The selected item is printed to stdout.
 .SH SEE ALSO
-.BR wmiibar (1),
-.BR wmiifs (1),
 .BR wmii (1),
 .BR wmiiwm (1),
-.BR wmiikeys (1),
 .BR wmiir (1)