update docstring of 'CorrelatedFieldMaker'

11 jobs for getting_started_CorrelatedField in 9 minutes and 6 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build Docker
passed #1082368
build_docker_from_cache

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  Test
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test_mpi

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test_serial

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  Demo Runs
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run_bernoulli

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run_curve_fitting

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run_getting_started_1

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run_getting_started_2

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run_getting_started_3

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run_getting_started_mf

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run_ipynb

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run_visual_mgvi

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