fix: improve links in README
diff --git a/README.md b/README.md
index 33461a6..46e33b3 100644
--- a/README.md
+++ b/README.md
@@ -116,26 +116,9 @@
This project exists thanks to all the people who contribute.
<a href="https://github.com/casbin/node-casbin/graphs/contributors"><img src="https://opencollective.com/node-casbin/contributors.svg?width=890&button=false" /></a>
-## Backers
+## Star History
-Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/casbin#backer)]
-
-<a href="https://opencollective.com/casbin#backers" target="_blank"><img src="https://opencollective.com/casbin/backers.svg?width=890"></a>
-
-## Sponsors
-
-Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/casbin#sponsor)]
-
-<a href="https://opencollective.com/casbin/sponsor/0/website" target="_blank"><img src="https://opencollective.com/casbin/sponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/casbin/sponsor/1/website" target="_blank"><img src="https://opencollective.com/casbin/sponsor/1/avatar.svg"></a>
-<a href="https://opencollective.com/casbin/sponsor/2/website" target="_blank"><img src="https://opencollective.com/casbin/sponsor/2/avatar.svg"></a>
-<a href="https://opencollective.com/casbin/sponsor/3/website" target="_blank"><img src="https://opencollective.com/casbin/sponsor/3/avatar.svg"></a>
-<a href="https://opencollective.com/casbin/sponsor/4/website" target="_blank"><img src="https://opencollective.com/casbin/sponsor/4/avatar.svg"></a>
-<a href="https://opencollective.com/casbin/sponsor/5/website" target="_blank"><img src="https://opencollective.com/casbin/sponsor/5/avatar.svg"></a>
-<a href="https://opencollective.com/casbin/sponsor/6/website" target="_blank"><img src="https://opencollective.com/casbin/sponsor/6/avatar.svg"></a>
-<a href="https://opencollective.com/casbin/sponsor/7/website" target="_blank"><img src="https://opencollective.com/casbin/sponsor/7/avatar.svg"></a>
-<a href="https://opencollective.com/casbin/sponsor/8/website" target="_blank"><img src="https://opencollective.com/casbin/sponsor/8/avatar.svg"></a>
-<a href="https://opencollective.com/casbin/sponsor/9/website" target="_blank"><img src="https://opencollective.com/casbin/sponsor/9/avatar.svg"></a>
+[](https://star-history.com/#casbin/node-casbin&Date)
## License
@@ -144,7 +127,5 @@
## Contact
If you have any issues or feature requests, please contact us. PR is welcomed.
-
- https://github.com/casbin/node-casbin/issues
-- hsluoyz@gmail.com
-- Tencent QQ group: [546057381](//shang.qq.com/wpa/qunwpa?idkey=8ac8b91fc97ace3d383d0035f7aa06f7d670fd8e8d4837347354a31c18fac885)
+- https://discord.gg/S5UjpzGZjN
