Add a new section for Installing and Starting H2O in the Python Client documentation

[exalate-issue-sync]

The Intro section of the Python Client documentation does not include sections for installing and starting H2O-3.
http://docs.h2o.ai/h2o/latest-stable/h2o-py/docs/intro.html

The topic that needs to be update is:
https://github.com/h2oai/h2o-3/blob/master/h2o-py/docs/intro.rst

Add Installing and Starting before The H2O Object System section.

Information on installing and starting h2o via the python client is available in the User Guide.
http://docs.h2o.ai/h2o/latest-stable/h2o-docs/downloading.html#install-in-python
http://docs.h2o.ai/h2o/latest-stable/h2o-docs/starting-h2o.html#from-python

[exalate-issue-sync]

Zain Haq commented: Pull request merged into master:

#4026

[h2o-ops]

JIRA Issue Migration Info

Jira Issue: PUBDEV-7019
Assignee: Zain Haq
Reporter: Angela Bartz
State: Resolved
Fix Version: 3.28.0.1
Attachments: N/A
Development PRs: Available

Linked PRs from JIRA

#4026