fix syntax error from missing comment line; update help

multi_ssh.sh

@@ -3,6 +3,10 @@
 #
 # MULTI REMOTE EXECUTION
 #
+# Source: <https://git-repo.iml.unibe.ch/iml-open-source/multi_ssh/>
+# License: GNU GPL 3.0 \
+# Docs: <https://os-docs.iml.unibe.ch/multi_ssh/>
+# 
 # ----------------------------------------------------------------------
 # 2023-03-13       <axel.hahn@unibe.ch>  WIP
 # 2023-03-24  0.3  <axel.hahn@unibe.ch>  show last execution
@@ -19,10 +23,10 @@
 # 2023-10-18  0.14 <axel.hahn@unibe.ch>  automatically init of userconfig; check terminal
 # 2023-10-19  0.15 <axel.hahn@unibe.ch>  Fix: Show running terminal in server list
 # 2024-05-15  0.16 <axel.hahn@unibe.ch>  add profiles; rename internal variables
-# 2024-05-24  0.17 <axel.hahn@unibe.ch>  update headlines; fix param -t
- ======================================================================
+# 2024-06-19  0.18 <axel.hahn@unibe.ch>  fix syntax error from missing comment line; update help
+# ======================================================================
 
-_version=0.17
+_version=0.18
 _self=$( basename $0 )
 cd "$( dirname $0 )"
 
@@ -55,6 +59,17 @@ COLOR_PRESET_error=("red")
 . "${MRE_CONFIGFILE}" 2>/dev/null
 
 USAGE="
+
+A remote execution tool to run a command on multiple servers.
+Its main usage is in interactive mode and command line parameters.
+
+    Source:  <https://git-repo.iml.unibe.ch/iml-open-source/multi_ssh/>
+    License: GNU GPL 3.0
+    Docs:    <https://os-docs.iml.unibe.ch/multi_ssh/>
+
+    2023-2024 Institute for Medical Education; University of Bern
+
+
 SYNTAX:
     $_self [OPTIONS] [SERVERLIST]