fix note

Author: glitch003

docs/learning-lit/cryptoeconomic-security.mdx

@@ -2,6 +2,11 @@
 title: "Cryptoeconomic Security"
 ---
 
+<Warning>
+The v1 Mainnet is <b>NOT YET LIVE</b>, but is coming soon.
+[Follow Lit Protocol on X](https://x.com/LitProtocol) to stay up to date.
+</Warning>
+
 ## Overview
 
 While threshold cryptography and TEEs provide technical security guarantees, the $LITKEY token introduces cryptoeconomic security that adds another layer of **defense in depth**.