diff -Naur zstd-1.5.4/programs/zstd.1 zstd-1.5.4.new/programs/zstd.1
--- zstd-1.5.4/programs/zstd.1	2023-02-10 00:41:50.000000000 +0000
+++ zstd-1.5.4.new/programs/zstd.1	2023-02-13 12:44:01.575160149 +0000
@@ -162,6 +162,13 @@
 \fB\-\-show\-default\-cparams\fR: shows the default compression parameters that will be used for a particular input file, based on the provided compression level and the input size\. If the provided file is not a regular file (e\.g\. a pipe), this flag will output the parameters used for inputs of unknown size\.
 .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 "gzip Operation Modifiers"
 When invoked via a \fBgzip\fR symlink, \fBzstd\fR will support further options that intend to mimic the \fBgzip\fR behavior: