[PostGIS] #4764: Doc update for ST_AsGeoJSON

[PostGIS]

#4764: Doc update for ST_AsGeoJSON
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  Reporter:  geozelot       |      Owner:  robe
      Type:  patch          |     Status:  closed
  Priority:  medium         |  Milestone:
 Component:  documentation  |    Version:  master
Resolution:  fixed          |   Keywords:  docs
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Comment (by strk):

 Andre: thanks for the patch, I had to tweak it to apply, it's in
 [cac91cf88e1315477ac1964b2e810208dea56dfe/git] - if you see other things
 to tweak please consider filing a pull request on
 https://git.osgeo.org/gitea/postgis/postgis -- you can login there with
 your existing OSGeo UserID credentials.
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4764#comment:4>
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