Add sample custom config file
Add sample custom config file

asciinema/asciinema.org,asciinema/asciinema-server,asciinema/asciinema.org,asciinema/asciinema-server,asciinema/asciinema-server,asciinema/asciinema-server,asciinema/asciinema.org,asciinema/asciinema.org