Add README steps to deploy nitro contracts on remote machine

.gitignore

@@ -1,10 +0,0 @@
-l2-setup/out
-l2-setup/hosts.ini
-nitro-bridge-setup/out
-nitro-bridge-setup/bridge-vars.yml
-nitro-nodes-setup/nitro-vars.yml
-nitro-nodes-setup/out
-nitro-contracts-setup/out
-nitro-contracts-setup/contract-vars.yml
-nitro-nodes-setup/out/
-l2-setup/l2-vars.yml

l2-setup/.gitignore

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 out
-hosts.ini
 l2-vars.yml
+hosts.ini

nitro-bridge-setup/README.md

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 To get started, follow the [installation](../README.md#installation) guide to setup ansible on your machine
 
+## Setup Remote Hosts
+
+To run the playbooks on a remote machine, follow these steps:
+
+- In the [`nitro-bridge-setup`](./) directory, create a new file named hosts.ini:
+
+   ```bash
+   cp ../example-hosts.ini hosts.ini
+   ```
+
+- Edit the [`hosts.ini`](./hosts.ini) file to run the playbook on a remote machine
+
+   ```bash
+  [nitro_host]
+  hostname ansible_host= ansible_user= ansible_ssh_common_args='-o ForwardAgent=yes'
+   ```
+
+  - Replace `host_name` with the alias of your choice.
+  - Replace `<TARGET_IP>` with the IP address or hostname of the target machine.
+  - Replace `<SSH_USER>` with the SSH username (e.g., dev, ubuntu).
+
+- Verify that you are able to connect to the host using the following command
+
+  ```bash
+  ansible all -m ping -i hosts.ini
+  ```
 ## Run Nitro Bridge
 
 - Copy the `bridge-vars-example.yml` vars file

nitro-contracts-setup/.gitignore

@@ -0,0 +1,3 @@
+out
+contract-vars.yml
+hosts.ini

nitro-nodes-setup/.gitignore

@@ -1,3 +1,3 @@
-nitro-vars.yml
 out
+nitro-vars.yml
 hosts.ini