added a basic description of what this project aims to the README

README.md

@@ -1,3 +1,30 @@
-# brewserverblocklist
+# Brew Server Blocklist
 
-A python script to collect the server-wide blocklists from Friendica nodes to build a collection from trusted admin choices.
+Friendica publishes the server wide blocklists for other servers in the
+fediverse. This script will collect the blocklists of servers of your
+choice and create a merged blocklist from them that you can then import
+into your own Friendica server.
+
+To make certain that you don't block just any instance in the fediverse
+because $somebody has it on their blocklist you assign _trustlevels_ to
+the correctnes of the blocklists of the other servers. Only when a server
+is blocked with a total trustlevel that is above a confidence level, it
+will be added to resulting blocklist automatically. Otherwise the user
+will be ask if they want to add a node to their blocklist or not.
+
+The entries of your own servers blocklist will always gain enough trust
+so that they are added on the final blocklist again.
+
+## Author
+
+* Tobias Diekershoff <tobias(dot)diekershoff(att)gmx(dot)net>
+
+## LICENSE
+
+     berewserverblocklist  Copyright (C) 2023 Tobias Diekershoff
+
+     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 <http://www.gnu.org/licenses/>.