added -k parameter to sort by columns

tablizer.1

@@ -133,7 +133,7 @@
 .\" ========================================================================
 .\"
 .IX Title "TABLIZER 1"
-.TH TABLIZER 1 "2022-10-10" "1" "User Commands"
+.TH TABLIZER 1 "2022-10-13" "1" "User Commands"
 .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
 .\" way too many mistakes in technical documents.
 .if n .ad l
@@ -159,6 +159,7 @@ tablizer \- Manipulate tabular output of other programs
 \&      \-M, \-\-markdown           Enable markdown table output
 \&      \-O, \-\-orgtbl             Enable org\-mode table output
 \&      \-s, \-\-separator string   Custom field separator
+\&      \-k, \-\-sort\-by int        Sort by column (default: 1)
 \&      \-v, \-\-version            Print program version
 .Ve
 .SH "DESCRIPTION"
@@ -222,6 +223,10 @@ The numbering can be suppressed by using the \fB\-n\fR option.
 By  default, if  a  \fBpattern\fR  has been  speficied,  matches will  be
 highlighted. You can disable this behavior with the \fB\-N\fR option.
 .PP
+Use the  \fB\-k\fR option to specify  by which column to  sort the tabular
+data (as in \s-1GNU\s0 \fBsort\fR\|(1)). The default sort column is the first one. To
+disable sorting at all, supply 0 (Zero) to \-k.
+.PP
 Finally the  \fB\-d\fR option  enables debugging  output which  is mostly
 usefull for the developer.
 .SS "\s-1PATTERNS\s0"