Error in FAQ example

["Marco M. F. De Santis" <marco@digitaldruid.net>]

Hello,
in the "FAQ for package maintainers" placed here:

https://ci.debian.net/doc/file.MAINTAINERS.html

the examples for using autopkgtest with lxc backend should use the 
container "autopkgtest-unstable-amd64" (created by "sudo debci setup") 
instead of "autopkgtest-sid-amd64". So these lines:

$ autopkgtest --user debci --output-dir /tmp/output-dir SOURCEPACKAGE \
  -- lxc --sudo autopkgtest-sid-amd64

$ autopkgtest --user debci --output-dir /tmp/output-dir \
  /path/to/PACKAGE_x.y-z_amd64.changes \
  -- lxc --sudo autopkgtest-sid-amd64

should be:

$ autopkgtest --user debci --output-dir /tmp/output-dir SOURCEPACKAGE \
  -- lxc --sudo autopkgtest-unstable-amd64

$ autopkgtest --user debci --output-dir /tmp/output-dir \
  /path/to/PACKAGE_x.y-z_amd64.changes \
  -- lxc --sudo autopkgtest-unstable-amd64

Also I wasn't able to use the schroot backend following the instructions 
in that page, the setup complains about unionfs or similar.

Best regards,
Marco