diff -Naur zstd-1.5.2.orig/programs/zstd.1 zstd-1.5.2/programs/zstd.1
--- zstd-1.5.2.orig/programs/zstd.1	2022-01-20 21:17:18.000000000 +0000
+++ zstd-1.5.2/programs/zstd.1	2022-01-22 17:40:54.130314058 +0000
@@ -214,6 +214,13 @@
 .
 .IP "\(bu" 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
 .