Update Add-on Documentation/Deployment/SSL.md

Update the SSL addon documentation to the match the addon way.
Update Add-on Documentation/Deployment/SSL.md
Update Add-on Documentation/Deployment/SSL.md

Added path/to/ before each file to make clear that the command expects a path to the file
Merge pull request #45 from vervas/patch-3

Updated add-on SSL documentation that shows how to provide certificate-, key- and chain-files via cctrlapp instead of via SFTP.