Rewrite README.

README.md → README.rst

-# BiscuIT - The Free School Information System (SIS) - Next Generation Platform
+BiscuIT - The Free School Information System (SIS) - Next Generation Platform
+==============================================================================
 
-## Warning
+Warning
+-------
 
 **This is a preview version of BiscuIT. Do not use with sensitive data. Especially, do not grant access to students yet.**
 
-## What BiscuIT is
+
+What BiscuIT is
+----------------
 
 BiscuIT is a web-based school information system (SIS) which can be used to
 manage and/or publish organisational subjects of educational institutions.
@@ -19,22 +23,24 @@ and data structures that can be used by apps that are developed and provided
 seperately. The core can interact closely with the Debian Edu / Skolelinux
 system.
 
-## Core features
+Core features
+--------------
 
 TBA.
 
-## Official add-on apps
-
-| App name                             | Purpose                                             |
-| ------------------------------------ | --------------------------------------------------- |
-| [Alsijil][BiscuIT-App-Alsijil]       | Class register and school records                   |
-| [Chronos][BiscuIT-App-Chronos]       | Manage time tables                                  |
-| [Exlibris][BiscuIT-App-Exlibris]     | School book management                              |
-| [SchILD-NRW][BiscuIT-App-SchILD-NRW] | SchILD-NRW interface                                |
-| [Untis][BiscuIT-App-Untis]           | Untis interface                                     |
-
-[BiscuIT-App-Alsijil]: https://edugit.org/Teckids/BiscuIT/BiscuIT-App-Alsijil
-[BiscuIT-App-Chronos]: https://edugit.org/Teckids/BiscuIT/BiscuIT-App-Chronos
-[BiscuIT-App-Exlibris]: https://edugit.org/Teckids/BiscuIT/BiscuIT-App-Exlibris
-[BiscuIT-App-SchILD-NRW]: https://edugit.org/Teckids/BiscuIT/BiscuIT-App-SchILD-NRW
-[BiscuIT-App-Untis]: https://edugit.org/Teckids/BiscuIT/BiscuIT-App-Untis
+Licence
+-------
+
+::
+
+  Copyright © 2019 Dominik George <dominik.george@teckids.org>
+  Copyright © 2019 mirabilos <thorsten.glaser@teckids.org>
+  Copyright © 2019 Tom Teichler <tom.teichler@teckids.org>
+
+  Licenced under the EUPL
+
+Please see the LICENCE file accompanying this distribution for the
+full licence text or on the `Europen Union Public Licence`_ website
+(including all other official language versions).
+
+.. _BiscuIT-ng: https://edugit.org/BiscuIT/BiscuIT-ng