Cosmetic issues

Hello,

FYI: some minor cosmetic issues.

- The GbE tag on the download page doesn't list the Banana Pi M2.

- The documentation describes 5 interfaces.* files. The directory contains a 6th one: interface.r1router

 https://github.com/igorpecovnik/lib/blob/b3489368eededc025d343fd220b022ca08f52338/documentation/user-faq.md#L294

- While building "jessie next" for Lamobo R1, Banana Pi M2 the following warning is displayed:

dpkg-genchanges: warning: package linux-libc-dev-next-sunxi in control file but not in files list

[[0;32m o.k. [0m] Compiling next kernel [[0;33m @host [0m]
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/basic/bin2c
  HOSTCC  scripts/kconfig/conf.o
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
scripts/kconfig/conf  --olddefconfig Kconfig
#
# configuration written to .config
#
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
  CHK     include/generated/uapi/linux/version.h
[snip]
  CLEAN   scripts/mod
  CLEAN   scripts
dpkg-deb: building package `linux-firmware-image-next-sunxi' in `../linux-firmware-image-next-sunxi_5.04_armhf.deb'.
dpkg-deb: building package `linux-dtb-next-sunxi' in `../linux-dtb-next-sunxi_5.04_armhf.deb'.
dpkg-deb: building package `linux-headers-next-sunxi' in `../linux-headers-next-sunxi_5.04_armhf.deb'.
dpkg-deb: building package `linux-image-next-sunxi' in `../linux-image-next-sunxi_5.04_armhf.deb'.
dpkg-genchanges: warning: package linux-libc-dev-next-sunxi in control file but not in files list

Regards,

Steve