Use variables for minimum host versions and bump Python to 3.6

Minimum Git, tar, Python and gcc versions are specified in quite a few
different places. Let's add some variables for these so there's no
chance of missing one if they're updated in future. Additionally, for
hardknott the minimum Python version is 3.6 so set that as the value for
Python.

(From yocto-docs rev: 9a802bc4bb0438c2540f360a08c7787caf64408a)

Signed-off-by: Paul Eggleton <paul.eggleton@microsoft.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/documentation/ref-manual/faq.rst b/documentation/ref-manual/faq.rst
index 3b65588caa..64fdfdf756 100644
--- a/documentation/ref-manual/faq.rst
+++ b/documentation/ref-manual/faq.rst
@@ -16,7 +16,7 @@ first before being pulled back into Poky. This practice benefits both
 projects immediately.
 
 **Q:** My development system does not meet the required Git, tar, and
-Python versions. In particular, I do not have Python 3.5.0 or greater.
+Python versions. In particular, I do not have Python &MIN_PYTHON_VERSION; or greater.
 Can I still use the Yocto Project?
 
 **A:** You can get the required tools on your host development system a