Add L2scan Explorer (#47)

* Add L2scan Explorer

* Update block-explorers.md

apps/base-docs/docs/tools/block-explorers.md

@@ -41,6 +41,12 @@ A testnet explorer for [Base Goerli](https://base-goerli.dex.guru/) is also avai
 
 ---
 
+## L2scan Explorer
+
+[L2scan Explorer](https://base.l2scan.co/) is a web-based tool that allows users to analyze Base and other layer 2 networks. It provides a user-friendly interface for viewing transaction history, checking account balances, and tracking the status of network activity.
+
+---
+
 ## Routescan
 
 [Routescan](https://superscan.network/) superchain explorer allows you to search for transactions, addresses, tokens, prices and other activities taking place across all Superchain blockchains, including Base.