diff --git a/MEV_by_chains/README.md b/MEV_by_chains/README.md
index 0de1dae..0a2e53c 100644
--- a/MEV_by_chains/README.md
+++ b/MEV_by_chains/README.md
@@ -2,13 +2,14 @@
 
 <br>
 
-* [ethereum 💎](MEV_on_Ethereum)
+* [solana](MEV_on_Solana)
+* [ethereum](MEV_on_Ethereum)
+* [bitcoin](MEV_on_Bitcoin)
 * [arbitrum](MEV_on_Arbitrum)
 * [avalanche](MEV_on_Avalance)
 * [binance](MEV_on_Binance)
 * [optimism](MEV_on_Optimism)
 * [polygon](MEV_on_Polygon)
-* [solana](MEV_on_Solana)
 * [cosmos](MEV_on_Cosmos)