Makefile: rename demo target
Makefile: rename demo target

Signed-off-by: Tomas Tomecek <d6f442c575011cb3ced586e5014ff7dec58a6c29@redhat.com>

TomasTomecek/pretty-git-prompt,TomasTomecek/pretty-git-prompt,TomasTomecek/pretty-git-prompt