Issue description

I believe this statement is incorrect:

"The main difference between authenticating ansible-navigator and ansible-playbook to managed hosts is that ansible-navigator runs the playbook inside a container that cannot access your ~/.ssh directory"

The ~/.ssh directory is mounted on the container, and its config file is actually used for the connection:

[cloud-user@dh-191 ans]$ ansible-navigator --pp missing exec findmnt | grep ssh

ssh-agent is used if available, but the statement that the ~/.ssh is not accessible from the execution environment is incorrect.

https://github.com/ansible/ansible-navigator/blob/v2.1.0/docs/faq.md#ssh-keys