[postgis-tickets] [PostGIS] #4653: broken support link to essential-postgis refcard

[PostGIS]

#4653: broken support link to essential-postgis refcard
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 Reporter:  strk     |      Owner:  robe
     Type:  defect   |     Status:  new
 Priority:  medium   |  Milestone:
Component:  website  |    Version:
 Keywords:           |
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 Source: https://lists.osgeo.org/pipermail/postgis-
 users/2020-March/044041.html

 Page https://postgis.net/support/
 contains broken link to http://refcardz.dzone.com/refcardz/essential-
 postgis

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4653>
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