env.local.example: fix `JUPYTERHUB_CONFIG_OVERRIDE` comment section

[tlvu]

JUPYTERHUB_CONFIG_OVERRIDE was disconnected from its sample code.

This is just a comment fix. Zero chance to introduce any regressions.

I won't tag it upon merging this PR.

[crim-jenkins-bot]

E2E Test Results

DACCS-iac Pipeline Results

Build URL : http://daccs-jenkins.crim.ca:80/job/DACCS-iac-birdhouse/2480/
Result : failure

BIRDHOUSE_DEPLOY_BRANCH : fix-wrong-comment-location-in-env.local.example
DACCS_CONFIGS_BRANCH : master
PAVICS_E2E_WORKFLOW_TESTS_BRANCH : master
PAVICS_SDI_BRANCH : master

DESTROY_INFRA_ON_EXIT : true
PAVICS_HOST : https://host-140-154.rdext.crim.ca

PAVICS-e2e-workflow-tests Pipeline Results

Tests URL : http://daccs-jenkins.crim.ca:80/job/PAVICS-e2e-workflow-tests/job/master/1522/

NOTEBOOK TEST RESULTS

    
[2024-02-16T03:46:36.376Z] ============================= test session starts ==============================
[2024-02-16T03:46:36.376Z] platform linux -- Python 3.9.16, pytest-7.3.1, pluggy-1.0.0
[2024-02-16T03:46:36.376Z] rootdir: /home/jenkins/agent/workspace/PAVICS-e2e-workflow-tests_master
[2024-02-16T03:46:36.376Z] plugins: anyio-3.6.1, dash-2.10.0, nbval-0.9.6, tornasync-0.6.0.post2, xdist-3.3.1
[2024-02-16T03:46:36.376Z] collected 264 items
[2024-02-16T03:46:36.376Z] 
[2024-02-16T03:46:47.280Z] notebooks-auth/geoserver.ipynb ..................                        [  6%]
[2024-02-16T03:47:22.011Z] notebooks-auth/test_cowbird_jupyter.ipynb ..........                     [ 10%]
[2024-02-16T03:47:26.002Z] notebooks-auth/test_thredds.ipynb ...........                            [ 14%]
[2024-02-16T03:47:34.944Z] pavics-sdi-master/docs/source/notebooks/WCS_example.ipynb .......        [ 17%]
[2024-02-16T03:47:45.029Z] pavics-sdi-master/docs/source/notebooks/WFS_example.ipynb ......         [ 19%]
[2024-02-16T03:47:51.608Z] pavics-sdi-master/docs/source/notebooks/WMS_example.ipynb .FFFFFFF       [ 22%]
[2024-02-16T03:55:12.787Z] pavics-sdi-master/docs/source/notebooks/climex.ipynb ............        [ 27%]
[2024-02-16T03:55:12.787Z] pavics-sdi-master/docs/source/notebooks/eccc-geoapi-climate-stations.ipynb . [ 27%]
[2024-02-16T03:55:18.633Z] ...............                                                          [ 33%]
[2024-02-16T03:55:28.317Z] pavics-sdi-master/docs/source/notebooks/eccc-geoapi-xclim.ipynb .....    [ 35%]
[2024-02-16T03:56:40.911Z] pavics-sdi-master/docs/source/notebooks/esgf-dap.ipynb .....F            [ 37%]
[2024-02-16T03:56:52.441Z] pavics-sdi-master/docs/source/notebooks/forecasts.ipynb ......           [ 39%]
[2024-02-16T03:56:57.774Z] pavics-sdi-master/docs/source/notebooks/opendap.ipynb .......            [ 42%]
[2024-02-16T03:57:02.273Z] pavics-sdi-master/docs/source/notebooks/pavics_thredds.ipynb .....       [ 44%]
[2024-02-16T04:00:29.523Z] pavics-sdi-master/docs/source/notebooks/regridding.ipynb ............... [ 50%]
[2024-02-16T04:01:38.207Z] .............                                                            [ 54%]
[2024-02-16T04:01:40.415Z] pavics-sdi-master/docs/source/notebooks/rendering.ipynb ....             [ 56%]
[2024-02-16T04:01:42.563Z] pavics-sdi-master/docs/source/notebooks/subset-user-input.ipynb ........ [ 59%]
[2024-02-16T04:01:58.268Z] .................                                                        [ 65%]
[2024-02-16T04:02:07.235Z] pavics-sdi-master/docs/source/notebooks/subsetting.ipynb ......          [ 68%]
[2024-02-16T04:02:08.625Z] pavics-sdi-master/docs/source/notebook-components/weaver_example.ipynb . [ 68%]
[2024-02-16T04:02:26.446Z] .........                                                                [ 71%]
[2024-02-16T04:02:36.141Z] finch-master/docs/source/notebooks/dap_subset.ipynb ...........          [ 76%]
[2024-02-16T04:02:45.309Z] finch-master/docs/source/notebooks/finch-usage.ipynb ...F..              [ 78%]
[2024-02-16T04:02:46.691Z] PAVICS-landing-master/content/notebooks/climate_indicators/PAVICStutorial_ClimateDataAnalysis-1DataAccess.ipynb . [ 78%]
[2024-02-16T04:02:49.769Z] ......                                                                   [ 81%]
[2024-02-16T04:02:56.353Z] PAVICS-landing-master/content/notebooks/climate_indicators/PAVICStutorial_ClimateDataAnalysis-2Subsetting.ipynb . [ 81%]
[2024-02-16T04:03:12.478Z] .............                                                            [ 86%]
[2024-02-16T04:03:22.484Z] PAVICS-landing-master/content/notebooks/climate_indicators/PAVICStutorial_ClimateDataAnalysis-3Climate-Indicators.ipynb . [ 86%]
[2024-02-16T04:03:58.062Z] ....s.                                                                   [ 89%]
[2024-02-16T04:04:06.226Z] PAVICS-landing-master/content/notebooks/climate_indicators/PAVICStutorial_ClimateDataAnalysis-4Ensembles.ipynb . [ 89%]
[2024-02-16T04:04:19.540Z] ...                                                                      [ 90%]
[2024-02-16T04:04:34.468Z] PAVICS-landing-master/content/notebooks/climate_indicators/PAVICStutorial_ClimateDataAnalysis-5Visualization.ipynb . [ 90%]
[2024-02-16T04:04:58.396Z] ......                                                                   [ 93%]
[2024-02-16T04:04:59.862Z] notebooks/hummingbird.ipynb ............                                 [ 97%]
[2024-02-16T04:08:01.056Z] notebooks/stress-tests.ipynb ......                                      [100%]
[2024-02-16T04:08:01.056Z] 
[2024-02-16T04:08:01.056Z] =================================== FAILURES ===================================