update docker image and readme

README.md

@@ -1 +1,36 @@
-# babylon-deployment
+# babylon-deployment
+
+## Start Bitcoin node
+
+1. Copy the `.env.bitcoin.example` file to `.env.bitcoin` and set the variables
+
+    ```bash
+    cp .env.bitcoin.example .env.bitcoin
+    ```
+
+* The `NETWORK` variable only can be either `regtest` or `signet`.
+* The `BTCSTAKER_PRIVKEY` variable must be a valid Bitcoin private key in WIF format.
+
+2. Start the Bitcoin node
+
+    ```bash
+    make start-bitcoin
+    ```
+
+3. Verify the Bitcoin node is synced and has a balance
+
+    ```bash
+    make verify-bitcoin-sync-balance
+    ```
+
+4. Stop the Bitcoin node
+
+    ```bash
+    make stop-bitcoin
+    ```
+
+5. Check the Bitcoin node logs
+
+    ```bash
+    docker compose -f docker/docker-compose-bitcoin.yml logs -f bitcoind
+    ```

docker/docker-compose-bitcoin.yml

@@ -1,6 +1,6 @@
 services:
   bitcoind:
-    image: snapchain/bitcoind:latest
+    image: snapchain/bitcoind:034f825
     container_name: bitcoind
     env_file:
       - "${PWD}/.env.bitcoin"