[PostGIS] #5719: Fix syntax error in documentation of ST_TransformPipeline

[PostGIS]

#5719: Fix syntax error in documentation of ST_TransformPipeline
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  Reporter:  jost           |      Owner:  robe
      Type:  defect         |     Status:  new
  Priority:  low            |  Milestone:  PostGIS 3.4.3
 Component:  documentation  |    Version:  3.4.x
Resolution:                 |   Keywords:
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Comment (by robe):

 This looks to have already been merged to master.  Guess it still needs to
 go into 3.4.3
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5719#comment:1>
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