[PostGIS] #5842: Images belong to the example below or above?

[PostGIS]

#5842: Images belong to the example below or above?
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 Reporter:  jidanni        |      Owner:  robe
     Type:  enhancement    |     Status:  new
 Priority:  low            |  Milestone:  PostGIS 3.5.3
Component:  documentation  |    Version:  3.4.x
 Keywords:                 |
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 On
 https://postgis.net/docs/ST_LineMerge.html
 it is hard to tell if the images belong to the example below or the
 example above, so there needs to be "<hr>" separator bars added.
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5842>
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