* Add dnf and yum commands in "Installation" section
Even though the command is very simple, it's good to be able to c&p it.
There were already commands for apt, emerge, pip, even direct installation
from git, so adding Fedora/RHEL/CentOS examples is reasonable.
Since yum is not installed by default on any supported Fedora releases
(F26 and F28 currently), recommend dnf.
* Tiny edit
* Removing obsolete version behavior callout notes - initial pass.
* Fixed example text punctuation.
* Removed old version callout.
* Typo fix
* Updated example
* Fixed awkward sentence
* Fixed incorrect feature name
* Reinstated current version callout
It's almost always preferable to clone by way of https:// rather than
using the bare git:// protocol. Not only does https:// provide
stronger guarantees it also plays nicer with corporate proxies, etc.
* use git+https:// in the example url because not everyone will have ssh
keys registered on github
* Remove the link to the github tarballs as they do not work. users can
use releases.ansible.com instead.
* #27045 fix installation guide via apt (ubuntu)
* Update intro_installation.rst
Re-added apt-get update as it is needed to get the latest package index from ppa:ansible/ansible
Move to using a requirements.txt to install the python packages.
This makes it easy to keep the documentation and actual package
dependencies in sync.
Fixes#18453
