doc: removed references to patreon account

.github/FUNDING.yml

@@ -1,12 +1,12 @@
 # These are supported funding model platforms
 
 github: skypjack
-patreon: skypjack
-open_collective: # Replace with a single Open Collective username
-ko_fi: # Replace with a single Ko-fi username
-tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
-community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
-liberapay: # Replace with a single Liberapay username
-issuehunt: # Replace with a single IssueHunt username
-otechie: # Replace with a single Otechie username
+patreon:
+open_collective:
+ko_fi:
+tidelift:
+community_bridge:
+liberapay:
+issuehunt:
+otechie:
 custom: https://www.paypal.me/skypjack

README.md

@@ -10,7 +10,6 @@
 [![Gitter chat](https://badges.gitter.im/skypjack/entt.png)](https://gitter.im/skypjack/entt)
 [![Discord channel](https://img.shields.io/discord/707607951396962417?logo=discord)](https://discord.gg/5BjPWBd)
 [![Donate](https://img.shields.io/badge/donate-paypal-blue.svg)](https://www.paypal.me/skypjack)
-[![Patreon](https://img.shields.io/badge/become-patron-red.svg)](https://www.patreon.com/bePatron?c=1772573)
 
 `EnTT` is a header-only, tiny and easy to use library for game programming and
 much more written in **modern C++**, mainly known for its innovative