add contributing section to readme

README.md

@@ -5,10 +5,15 @@ Version: 1.20.1
 Modlist: [here](modlist.md)  
 Whitelist: ping catppuccin-macchiato or tux to get whitelisted  
 
-## Useful Tips:
+## Useful Tips
 
 - set tablist nickname & suffix: `/name nickname <nickname>` & `/name suffix <suffix>`
 - set chat nickname: `/neko nickname <nickname>`
 - keybind for configuring Voicechat: `v`
 - create vc group: `/groups create name:<name>`
 - turn yourself into a neko: `/tonekoadmin set <username>`
+
+## Contributing
+
+- We use [packwiz](https://packwiz.infra.link/tutorials/creating/getting-started/) to manage the modpack
+- Mods should be sourced from Modrinth where possible