Update overview.mdx

Signed-off-by: alt <[email protected]>

Author: a1ttech

docs/governance/overview.mdx

@@ -2,6 +2,12 @@
 title: "Overview"
 ---
 
+<Tip>
+$LITKEY and the Staking Contest to Select the Genesis Node Operator Set for the Naga Mainnet are now LIVE.
+
+[Learn More](https://spark.litprotocol.com/litkey-is-live/).
+</Tip>
+
 Lit Protocol has established an initial governance system to guide and organize its development and operations. This system exists to manage decision-making related to the core protocol, the infrastructure that supports it, and the broader ecosystem of applications built on top of it.
 
 ## Purpose