clarify docs

README.md

@@ -35,6 +35,12 @@ The intended topology is a bastion host facing the Internet, with reverse proxie
 - Copy `inventory.example.yml` to `inventory.yml`.
 - Write down the machines' DHCP addresses inside `inventory.yml` under the `fallback_host` field.
 - Assign static LAN IP addresses for your machines in the inventory.
+- Create ssh keys for all your hosts:
+    ```
+    mkdir -p ~/.ssh/keys
+    ssh-keygen -t ed25519 -f ~/.ssh/keys/your_host_name
+    ```
+    It is important for the hostnames to match your inventory hostnames.
 
 - Set up your domain name and networks.
     - Forward all needed ports to your bastion host's static IP.

inventory.example.yml

@@ -5,8 +5,7 @@
 # Set fallback_host using `nmap 192.168.0.0/24 -p 22` to find the dynamic IP of your Pi
 # local_ip is used after first setup.
 
-# Make sure to make entries in your .ssh/config for each hostname
-# Otherwise Ansible doesn't know how to resolve them
+# Make entries in your .ssh/config for ease of use
 # Example:
 #
 #   Host your_fleet_host