[OSGeoLive] #2230: Update the T-Rex Quickstart

[OSGeoLive]

#2230: Update the T-Rex Quickstart
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 Reporter:  flicstar       |      Owner:  osgeolive@…
     Type:  task           |     Status:  new
 Priority:  normal         |  Milestone:  OSGeoLive14.0
Component:  Documentation  |   Keywords:  Quickstart
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 The T-Rex Quickstart was reviewed by @flicstar as part of the Google
 Season of Docs in October 2019.

 It scored 2.5 out of possible 4. It requires some minor changes to
 headings and numbering.

 Please see comments in GitHub on this PR: ​https://github.com/OSGeo
 /OSGeoLive-doc/pull/564

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Ticket URL: <https://trac.osgeo.org/osgeolive/ticket/2230>
OSGeoLive <http://live.osgeo.org/>
self-contained bootable DVD, USB thumb drive or Virtual Machine based on Lubuntu, that allows you to try a wide variety of open source geospatial software without installing anything.