doc: suggest dpkg-buildpackage --no-sign for a smoother experience.
doc: suggest dpkg-buildpackage --no-sign for a smoother experience.

Otherwise it ends with an error message which leads people to think the
package wasn't built.

mosra/magnum-examples,mosra/magnum-examples,mosra/magnum-examples,mosra/magnum-examples,mosra/magnum-examples,mosra/magnum-examples,mosra/magnum-examples