Add wrapper license, extend readme section

diff --git a/lagdetect.sh b/lagdetect.sh
index f53687f65dc7cae8009a456a10431a46afb460f4..f9644944b143fb71d28a8a404e2200b7c8498e33 100755 (executable)
--- a/lagdetect.sh
+++ b/lagdetect.sh
@@ -1,6 +1,26 @@
 #!/bin/sh
 
-# CONFIGURATION - adapt these variables to yor needs.
+# Copyright (C)2022 Johannes Truschnigg (https://johannes.truschnigg.info/)
+#  This program is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# This file needs to be run with '__lagdetec.awk' in your current working
+# directory. Please take the time to review and set all applicable options
+# below under CONFIGURATION. If you fail to do so, the script will probably do
+# more harm than good. Please be aware that this is work in progress, and the
+# main application logic is implemented in the awk script.
+
+# CONFIGURATION - adapt these variables to yor needs
 # These will be docmented once this is finished  - promise ;)
 
 FUDGE_MS=20.0 # "fudge" factor in msec that yor PING_PEERS are expected to fluctuate in latency under normal conditions