diff --git a/COPYING b/COPYING
deleted file mode 100644
index 33897c93..00000000
--- a/COPYING
+++ /dev/null
@@ -1,15 +0,0 @@
-PuzzleTime - Web application for time tracking and resource planning.
-Copyright (C) 2006-2017 Puzzle ITC GmbH.
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU Affero 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 Affero General Public License for more details.
-
-You should have received a copy of the GNU Affero General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
diff --git a/README.md b/README.md
index 609ebb60..aa680592 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 PuzzleTime is an open source time tracking and resource planning web application for SMEs.
 
 ![Rails Unit Tests](https://github.com/puzzle/puzzletime/workflows/Rails%20Unit%20Tests/badge.svg)
+[![GitHub](https://img.shields.io/github/license/puzzle/puzzletime)](https://github.com/puzzle/puzzletime/blob/master/LICENSE)
 
 ## Development
 
@@ -15,52 +16,10 @@ directory:
     rails db:setup       # prepare database
     rails server         # start the rails server
 
-A more detailed development documentation in German can be found in [doc/development](doc/development/README.md). This is where you also find some [Deployment](doc/development/03_deployment.md) instructions
-
-## Heroku
-
-The current master branch needs to be modified slightly for heroku. To achieve this we create a new branch
-
-    git checkout -b heroku_setup
-
-Then we make the require changes for Memcache and Sendfile to [production.rb](config/environments/production.rb)
-
-    config.action_dispatch.x_sendfile_header = nil
-
-    config.cache_store = :mem_cache_store,
-      (ENV["MEMCACHIER_SERVERS"] || "").split(","),
-      {:username => ENV["MEMCACHIER_USERNAME"],
-      :password => ENV["MEMCACHIER_PASSWORD"],
-      :failover => true,
-      :socket_timeout => 1.5,
-      :socket_failure_delay => 0.2,
-      :down_retry_delay => 60
-      }
-
-Then we commit these changes to our branch
-
-    git commit -am 'Changes for heroku'
-
-Now we can deploy with these modifications to heroku 
-
-    heroku create
-    git push heroku heroku_setup:master
-
-    heroku config:set RAILS_SERVE_STATIC_FILES=true 
-    heroku run rails assets:precompile
-
-    heroku addons:create memcachier:dev
-
-    heroku run rails db:migrate 
-    heroku run 'ln -s /app/db/seeds/development /app/db/seeds/production && rails db:seed'
-    heroku restart
-    heroku open
-
-Then login using (username: mw, password: a) as credentials
-
+A more detailed development documentation in German can be found in [doc/development](doc/development/README.md). This is where you also find some [Deployment](doc/development/02_deployment.md) instructions
 
 ## License
 
 PuzzleTime is released under the GNU Affero General Public License.
-Copyright 2006-2017 by [Puzzle ITC GmbH](http://puzzle.ch).
-See COPYING for more details.
+Copyright 2006-2024 by [Puzzle ITC GmbH](http://puzzle.ch).
+See [LICENSE](LICENSE) for more details.