diff --git a/README.md b/README.md
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--- a/README.md
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-# TYPO3 extension tt_products
-
-## What is does
-
-This is a shop system extension for TYPO3 based on PHP 7 and PHP 8.
-
-## Configuration
-
-See the file manual.odt under the folder doc of the extension.
-
-
-* [Wiki](https://github.com/franzholz/tt_products/wiki)
-* [Ebook](http://www.fosdoc.de/downloads/OSP_typo3webshop.pdf)
-
-## Upgrade
-
-If you upgrade to a newer version of tt_products then you sometimes you must execute upgrade wizards in the TYPO3 Install Tool for tt_products. Do not forget to make a backup copy of the database before you execute them.
-
-Only if you are still using TYPO3 < 9 you must execute the renaming of these database table fields manually in phpMyAdmin or a similar database tool. 
-
-    tt_products_mm_graduated_price:
-    product_uid ==> uid_local
-    graduated_price_uid ==> uid_foreign
-    productsort ==> sorting
-    graduatedsort ==> sorting_foreign
-
-    * tt_products_products_mm_articles:
-    articlesort ==>  sorting_foreign
-
-    * sys_products_orders_mm_tt_products:
-    sys_products_orders_uid ==> uid_local
-    tt_products_uid ==> uid_foreign
-
-
-## Improvements
-
-Contribute under [Github tt_products](https://github.com/franzholz/tt_products)  .
-
diff --git a/README.rst b/README.rst
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+++ b/README.rst
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+TYPO3 extension tt_products
+===========================
+
+What is does
+------------
+
+This is a shop system extension for TYPO3 based on PHP 7 and PHP 8.
+
+Configuration
+-------------
+
+See the file manual.odt under the folder doc of the extension.
+
+-  `Wiki <https://github.com/franzholz/tt_products/wiki>`__
+-  `Ebook <http://www.fosdoc.de/downloads/OSP_typo3webshop.pdf>`__
+
+Upgrade
+-------
+
+If you upgrade to a newer version of tt_products then you sometimes you
+must execute upgrade wizards in the TYPO3 Install Tool for tt_products.
+Do not forget to make a backup copy of the database before you execute
+them.
+
+Only if you are still using TYPO3 < 9 you must execute the renaming of
+these database table fields manually in phpMyAdmin or a similar database
+tool.
+
+::
+
+   tt_products_mm_graduated_price:
+   product_uid ==> uid_local
+   graduated_price_uid ==> uid_foreign
+   productsort ==> sorting
+   graduatedsort ==> sorting_foreign
+
+   * tt_products_products_mm_articles:
+   articlesort ==>  sorting_foreign
+
+   * sys_products_orders_mm_tt_products:
+   sys_products_orders_uid ==> uid_local
+   tt_products_uid ==> uid_foreign
+
+Improvements
+------------
+
+Contribute under `Github
+tt_products <https://github.com/franzholz/tt_products>`__ .