docs: updated NIFTy gallery link to new gallery

9 jobs for new_gallery in 8 minutes and 4 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Build Docker
passed build_docker_from_cache #725596

00:00:15

 
  Test
passed test_mpi #725598

00:04:02

passed test_serial #725597

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83.0%
 
  Demo Runs
passed run_bernoulli #725603

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passed run_curve_fitting #725604

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passed run_getting_started_1 #725600

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passed run_getting_started_2 #725601

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passed run_getting_started_3 #725602

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passed run_ipynb #725599

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