Fix private Key Filename

[tcs-ulli]

... to actual letsencrypt standard

[mwaeckerlin]

My version of letsencrypt client generates key files named privkey.pem, so if there is a change in naming, both versions should be supported.

[cutec-chris]

Do you use an Container for this or do you do it on the host?`
Also with the change it dosend work for me, maybe i generate the certificate wrong.

[mwaeckerlin]

Do you use an Container for this or do you do it on the host?

I use mwaeckerlin/reverse-proxy and share the volume.

[mwaeckerlin]

@cutec-chris, @tcs-ulli, what is your status here?

My status is: Works for me only without your change…