Incorrect documentation for encrypted ssh keys

[lancce21]

I've had some issues trying to get your action to work with an encrypted ssh key. Unless I'm mistaken, in various places your documentation shows "password" instead of "passphrase". Below is an example.

`

• name: ls -a via OPEN SSH Private Key
  uses: ./
  with:
  command: ls -a
  host: ${{ secrets.HOST }}
  username: garygrossgarten
  password: ${{ secrets.PASSPHRASE }}
  privateKey: ${{ secrets.PRIVATE_KEY}}
  `
  I have tried to connect by setting privateKey and passphrase but I am unable to connect. Using the same credentials I was able to connect with another github-action (appleboy/scp-action) so I think the credentials should be correct.