add check description in man page

diff --git a/src/man/backup.1 b/src/man/backup.1
index 493a466319ac34503408918b2c0a5976509fa0e1..fcdabc2ba1220c954589bdb366d0ac437aed124b 100644 (file)
--- a/src/man/backup.1
+++ b/src/man/backup.1
@@ -3,6 +3,17 @@
 .SH NAME
 backup - backup bash script
 
+.SH SYNOPSIS
+
+backup [<option>]
+
+.SH OPTIONS
+.P
+.EX
+check     display the last backups of day, week and month
+.EE
+.P
+
 .SH CONFIGURATION
 copy config-example.yaml from docs folder into folder it should run
 backup scripts. it must configurate pathes machines and so on.
\ No newline at end of file