diff -Naur zstd-1.5.1.orig/programs/zstd.1 zstd-1.5.1/programs/zstd.1

--- zstd-1.5.1.orig/programs/zstd.1	2021-12-20 22:49:18.000000000 +0000

+++ zstd-1.5.1/programs/zstd.1	2021-12-22 16:49:17.160850340 +0000

@@ -146,6 +146,14 @@

 \fB\-\-show\-default\-cparams\fR: Shows the default compression parameters that will be used for a particular src file\. If the provided src file is not a regular file (eg\. named pipe), the cli will just output the default parameters\. That is, the parameters that are used when the src size is unknown\.

 .IP "\[ci]" 4

 \fB\-\-\fR: All arguments after \fB\-\-\fR are treated as files

+

+.SH Parallel Zstd OPTIONS

+Additional options for the pzstd utility

+.TP

+.BR \-p ", " --processes

+ number of threads to use for (de)compression (default:4)

+

+

 .IP "" 0

 .SS "Restricted usage of Environment Variables"

 Using environment variables to set parameters has security implications\. Therefore, this avenue is intentionally restricted\. Only \fBZSTD_CLEVEL\fR and \fBZSTD_NBTHREADS\fR are currently supported\. They set the compression level and number of threads to use during compression, respectively\.