Merge pull request #672 from sharkdp/discord-link

Add Discord link

README.md

@@ -2,14 +2,15 @@
 
 <img src="numbat-wasm/www/numbat.svg">
 
-**[Try online!] • [Documentation] • [Tutorial] • [Syntax reference] • [Installation] • [Development]**
+**[Try online!] • [Documentation] • [Tutorial] • [Syntax reference] • [Installation] • [Discord] • [Development]**
 
 [Try online!]: https://numbat.dev/
 [Features]: #key-features
 [Documentation]: https://numbat.dev/doc/
 [Tutorial]: https://numbat.dev/doc/tutorial.html
 [Syntax reference]: https://numbat.dev/doc/example-numbat_syntax.html
 [Installation]: https://numbat.dev/doc/cli-installation.html
+[Discord]: https://discord.gg/kAaVTsat4D
 [Development]: #development
 
 *Numbat* is a statically typed programming language for scientific computations<br>