[OSGeoLive] #2303: documentation: update screenshots for postgis overview/quickstart to pgAdmin4

[OSGeoLive]

#2303: documentation: update screenshots for postgis overview/quickstart to
pgAdmin4
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 Reporter:  astrid_emde  |      Owner:  osgeolive@…
     Type:  task         |     Status:  new
 Priority:  normal       |  Milestone:  OSGeoLive14.0
Component:  OSGeoLive    |   Keywords:
-------------------------+---------------------------
 * Screenshots are outdated
 * check screenshots
 * check text which describes the handling

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Ticket URL: <https://trac.osgeo.org/osgeolive/ticket/2303>
OSGeoLive <https://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.