doc: Use two spaces after full stop.

* doc/guix.texi:
(GNU Distribution):
(Invoking guix-daemon):
(Invoking guix pull):
(Invoking guix time-machine):
(Specifying Additional Channels):
(Build Systems):
(Invoking guix refresh):
(Invoking guix processes):
(Mapped Devices):
(Base Services):
(Networking Services):
(Mail Services):
(Telephony Services):
(Monitoring Services):
(Web Services):
(DNS Services):
(Continuous Integration):
(Audio Services):
(Virtualization Services):
(Version Control Services):
(Guix Services):
(Miscellaneous Services):
(Initial RAM Disk):
(Bootloader Configuration):
(Invoking guix deploy): Use two spaces after full stop, as required by Texinfo
syntax.

0 files changed, 0 insertions, 0 deletions