docs: reduce the number of Discord links

README.md

@@ -6,19 +6,17 @@ a Programming Languages course.
 **General**
 
 - License: [GPLv3.0 or higher](LICENSE)
-- Need help? [Chat with us on Discord](https://discord.gg/EVtNSxS9E2)
+- Need help? Chat with us on [Discord](https://discord.gg/EVtNSxS9E2)
 - Want to report a problem or request feature? [Open an issue](https://github.com/ourPLCC/plcc/issues).
 
 **User Guide**
 
 - [Install PLCC](docs/User/Install.md)
 - [Use PLCC](docs/User/Use.md)
 - [Download the PLCC-paper.pdf](docs/PLCC-paper.pdf)
-- [Join our community on Discord](https://discord.gg/EVtNSxS9E2)
 
 **Developer Guide**
 
-- [Join our community on Discord](https://discord.gg/EVtNSxS9E2)
 - [Contribute Using a Fork](docs/Developer/Contribute-Using-a-Fork.md)
 - [Contribute Without a Fork](docs/Developer/Contribute-Without-a-Fork.md)
 - [Testing](docs/Developer/Testing.md)