only include moby dick in container

Author: chocolatkey

Dockerfile

@@ -46,12 +46,8 @@ LABEL org.opencontainers.image.source="https://github.com/readium/cli"
 ADD https://pagure.io/mailcap/raw/master/f/mime.types /etc/
 
 # Add demo EPUBs to the container by default
-# These will go away soon!
+# This will go away soon!
 ADD --chown=nonroot:nonroot https://readium-playground-files.storage.googleapis.com/demo/moby-dick.epub /srv/publications/
-ADD --chown=nonroot:nonroot https://readium-playground-files.storage.googleapis.com/demo/BellaOriginal3.epub /srv/publications/
-ADD --chown=nonroot:nonroot https://readium-playground-files.storage.googleapis.com/demo/coup002elin01_01.epub /srv/publications/
-ADD --chown=nonroot:nonroot https://readium-playground-files.storage.googleapis.com/demo/les_diaboliques.epub /srv/publications/
-ADD --chown=nonroot:nonroot https://readium-playground-files.storage.googleapis.com/demo/nathaniel-hawthorne_the-house-of-the-seven-gables_advanced.epub /srv/publications/
 
 # Copy built Go binary
 COPY --from=builder "/app/readium" /opt/