Update fixturenet eth port mappings

ops/deployments-from-scratch.md

@@ -27,7 +27,7 @@
   * laconic-so: see [installation](https://git.vdb.to/cerc-io/testnet-ops/src/branch/main/stack-orchestrator-setup/README.md#setup-stack-orchestrator)
 
 <details open>
-  <summary>Nitro Contracts Deployment</summary>
+  <summary>Fixturenet Eth</summary>
 
 ## Fixturenet Eth
 
@@ -110,8 +110,8 @@
           - '9898:9898'
           - '30303'
         fixturenet-eth-geth-1:
-          - '8545:8545'
-          - '8546:8546'
+          - '7545:8545'
+          - '7546:8546'
           - '40000'
           - '6060'
         fixturenet-eth-lighthouse-1:
@@ -142,6 +142,11 @@
   laconic-so deployment --dir fixturenet-eth-deployment start
   ```
 
+</details>
+
+<details open>
+  <summary>Nitro Contracts Deployment</summary>
+
 ## Nitro Contracts Deployment
 
 * Stack: <https://git.vdb.to/cerc-io/nitro-stack/src/branch/main/stack-orchestrator/stacks/nitro-contracts>
@@ -1121,6 +1126,8 @@ https://loro-console.laconic.com    -> 4001
 # Machine 2
 https://sepolia.laconic.com   -> 8545
 wss://sepolia.laconic.com     -> 8546
+https://eth.laconic.com       -> 7545
+wss://eth.laconic.com         -> 7546
 
 bridge.laconic.com
 Open ports: