fix: replace the batcher start with the gateway+poller one

Author: maximopalopoli

examples/l2/README.md

@@ -132,8 +132,10 @@ You can also run this example on a local devnet. To get started, navigate to the
 ```shell
 # This will start the local net
 make ethereum_package_start
-# Start the batcher
-make batcher_start_ethereum_package
+# Start the payments poller
+make agg_mode_payments_poller_start_ethereum_package
+# Start the gateway
+make agg_mode_gateway_start_ethereum_package
 ```
 
 - Navigate back to the example directory:
@@ -156,6 +158,17 @@ make gen_env_l2_devnet
 make gen_devnet_owner_wallet
 ```
 
+- Transfer funds to the aggregation mode payments contract:
+
+```shell
+cd aggregation_mode/cli
+
+cargo run --release -- deposit \
+ --private-key 0x47e179ec197488593b187f80a00eb0da91f1b9d0b13f8733639f19c30a34926a \
+ --network devnet \
+ --rpc-url http://localhost:8545
+```
+
 - Generate the program ID of the program that is going to be proven:
 
 ```shell