[TASK] Update funding information

Resolves: #72

Author: extcode

.github/FUNDING.yml

@@ -0,0 +1,3 @@
+github: extcode
+custom: ["https://paypal.me/extcart"]
+patreon: ext_cart

Documentation/Index.rst

@@ -3,7 +3,7 @@
 .. _start:
 
 ===========================
-EXT: Contacts
+EXT:contacts
 ===========================
 
 .. image:: Images/contacts_logo.png
@@ -23,7 +23,7 @@ EXT: Contacts
       en
 
    :Description:
-      Contacts is a TYPO3 extension for handling contacts (companies, persons).
+      EXT:contacts is a TYPO3 extension for handling contacts (companies, persons).
       Persons and companies can be related to each other.
       Both can have multiple addresses and other contact data.
 

Documentation/Introduction/Sponsoring/Index.rst

@@ -3,10 +3,12 @@
 Sponsoring
 ==========
 
-If there is a feature that has not yet been implemented in Cart, you can contact me at any time.
+If there is a feature that has not yet been implemented in EXT:contacts, you can contact me at any time.
 
 There is also the possibility to support the further development independently of new functions.
 
+*  Ask for an invoice.
+*  `GitHub Sponsors <https://github.com/sponsors/extcode>`_
 *  `paypal.me <https://paypal.me/extcart>`_
 *  `patreon.com <https://patreon.com/ext_cart>`_
 

README.md

@@ -3,7 +3,7 @@
 [![Build Status](https://travis-ci.org/extcode/contacts.svg?branch=master)](https://travis-ci.org/extcode/contacts)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/0e71b0ff657e475f8b4af581e13ce3b8)](https://www.codacy.com/app/extcode/contacts?utm_source=github.com&utm_medium=referral&utm_content=extcode/contacts&utm_campaign=Badge_Grade)
 
-Contacts is a TYPO3 extension for handling contacts (companies, persons).
+EXT:contacts is a TYPO3 extension for handling contacts (companies, persons).
 
 ## 1. Features
 
@@ -48,8 +48,9 @@ News uses **semantic versioning** which basically means for you, that
 ## 4. Sponsoring
 
 *  Ask for an invoice.
-*  [Patreon](https://patreon.com/ext_cart)
-*  [PayPal.Me](https://paypal.me/extcart)
+* [GitHub Sponsors](https://github.com/sponsors/extcode)
+* [PayPal.Me](https://paypal.me/extcart)
+* [Patreon](https://patreon.com/ext_cart)
 
 [1]: https://docs.typo3.org/typo3cms/extensions/cart/
 [2]: https://getcomposer.org/