John McNamara 4b677a3b60 doc: update sphinx installation instructions
Update the Sphinx installation instructions in the documentation
contributors guide to reflect the fact that in the 1.4+ versions
of Sphinx the ReadTheDocs theme must also be installed. Previously,
in version 1.3.x, it was installed by default.

Also change 'yum' to 'dnf' for package installations.

Signed-off-by: John McNamara <john.mcnamara@intel.com>
2016-07-22 19:59:54 +02:00
..
2015-12-13 22:30:47 +01:00