add SSH keys to device

README.md

@@ -85,6 +85,20 @@ Once that is set up, you should be able to SSH into the device thusly:
 ssh tici
 ```
 
+On the device, add your ssh public keys, at the `comma@tici:~$` prompt:
+
+```
+mkdir ~/.ssh
+chmod 700 ~/.ssh/
+```
+
+Copy over laptop keys a variety of ways, such as from the laptop:
+
+```
+scp -p ~/.ssh/id_ed25519.pub tici:.ssh/authorized_keys
+```
+
+Then do the OpenPilot install.
 
 
 Another way to do this would be to hijack DNS on your own wifi to intercept