readme update

README.md

@@ -1,12 +1,10 @@
-Redmine Issue View Columns plugin for Redmine
-=============================================
+# Redmine Issue View Columns plugin for Redmine
 
 [![Tests](https://github.com/AlphaNodes/redmine_issue_view_columns/workflows/Tests/badge.svg)](https://github.com/AlphaNodes/redmine_issue_view_columns/actions?query=workflow%3A"Run+Tests) ![Run Linters](https://github.com/AlphaNodes/redmine_issue_view_columns/workflows/Run%20Linters/badge.svg)
 
 Redmine plugin to customize shown columns in subtasks and related issues on issue page
 
-Basic functionality
--------------------
+## Basic functionality
 
 * Provide configurable list of columns that are shown for subtasks list in issue view
 * Provide configurable list of columns that are shown for related issues in issue view
@@ -16,15 +14,13 @@ Basic functionality
 * Related issues contain an icon that is used to remove the relation from corresponding ticket. This icon is always shown as the last column on the right side of the related issues table
 * Same configuration is applied to both subtasks and related issues sections
 
-Requirements
-------------
+## Requirements
 
 * Redmine version >= 5.0
 * Redmine Plugin: [additionals](https://github.com/alphanodes/additionals)
-* Ruby version >= 2.7
+* Ruby version >= 3.0
 
-Installation
-------------
+## Installation
 
 Install `redmine_issue_view_columns` plugin for `Redmine`
 
@@ -37,16 +33,34 @@ Install `redmine_issue_view_columns` plugin for `Redmine`
 
 Restart Redmine (application server) and you should see the plugin show up in the Plugins page.
 
-Uninstall
-------------
+## Uninstall
 
 Uninstall `redmine_issue_view_columns` plugin.
 
     cd $REDMINE_ROOT
     rm -rf plugins/redmine_issue_view_columns public/plugin_assets/redmine_issue_view_columns
 
-Credits
--------
+## License
+
+This plugin is licensed under the terms of GNU/GPL v2.
+See LICENSE for details.
+
+## Redmine Copyright
+
+The redmine_issue_view_columns is a plugin extension for Redmine Project Management Software, whose Copyright follows.
+Copyright (C) 2006-  Jean-Philippe Lang
+
+Redmine is a flexible project management web application written using Ruby on Rails framework.
+More details can be found in the doc directory or on the official website <http://www.redmine.org>
+
+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 2 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, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+## Credits
 
 This plugins is a fork of <https://github.com/kenan3008/redmine_issue_view_columns>
 Plugin is inspired by <https://www.redmine.org/plugins/subtaskcolumns> and <https://www.redmine.org/plugins/subtask_list_columns>