Documentation entry regarding ssh known_hosts for Win users

Please specify in the the Configuration section of the documentation that Windows users need to remove the SSH entry pertaining to 10.0.0.2 from C:\Users\CurrentUser\.ssh\known_hosts every time they update pwnagotchi, since the newly generated keys won't match the one in the known_hosts file.

Start with the Configuration section of the documentation and verify how Windows users update pwnagotchi. Document that users should remove the SSH entry for 10.0.0.2 from C:\Users\CurrentUser\.ssh\known_hosts after each update, so the newly generated keys are accepted.

Written by the indexing model from the issue text.