add scam warning section to README

Author: WhatYouThing

README.md

@@ -219,6 +219,18 @@ It's in the name. Simple and effective Hypixel Skyblock mod for modern versions
 
 </details>
 
+## Scam Warning
+
+- **There are fake NoFrills websites and Discord servers floating around. Here are some general rules of thumb to help
+  you stay safe:**
+    - The official Discord server link is https://discord.com/invite/NENuTFvS7X.
+    - The official Discord server does not require any form of verification.
+    - The official Discord server does not have a vanity link, it is currently taken by a phishing server which tries to
+      steal your Microsoft account.
+    - There is no official website where you can download the mod from. The Modrinth and the GitHub are the only safe
+      sources of the mod.
+    - Microsoft does not care about your account safety. Never share your email address with anyone.
+
 ## Installation
 
 - Head over to the [versions page](https://modrinth.com/mod/nofrills/versions), download the most recent release for