Update README

README.md

@@ -1,7 +1,18 @@
-# node
+![Base](logo.png)
+
+# Base node
+
+Base is a secure, low-cost, developer-friendly Ethereum L2 built to bring the next billion users to web3. It's built on Optimism’s open-source [OP Stack](https://optimism.io).
 
 This repository contains the relevant Docker builds to run your own node on the Base network.
-Currently only the Base testnet (on Goerli) is supported.
+
+### Supported networks
+
+| Ethereum Network | Status |
+|------------------|--------|
+| Goerli testnet   | ✅      |
+| Mainnet          | 🚧     |
+
 
 ### Usage
 
@@ -13,6 +24,15 @@ docker-compose up
 3. You should now be able to `curl` your Base node:
 ```
 curl -d '{"id":0,"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["latest",false]}' \
-     -H "Content-Type: application/json" \
-     http://localhost:8545
+  -H "Content-Type: application/json" http://localhost:8545
+```
+
+### Syncing
+
+Sync speed depends on your L1 node, as the majority of the chain is derived from data submitted to the L1. You can check your syncing status using the `optimism_syncStatus` RPC on the `op-node` container. Example:
+```
+echo Latest synced block behind by: $((($(date +%s)-$( \
+  curl -d '{"id":0,"jsonrpc":"2.0","method":"optimism_syncStatus"}' \
+  -H "Content-Type: application/json" http://localhost:7545 | \
+  jq -r .result.unsafe_l2.timestamp))/60)) minutes
 ```