add publish reminder message after cli upload

[david-nishi]

adds feature mentioned in #1085
closes #1186

(base) MacBook-Pro-4:openneuro david$ /Users/david/projects/openNeuro/openneuro/openneuro/packages/openneuro-cli/src/index.js upload "/Users/david/Documents/bids datasets/32 Mb/ds001421-1.0.1" -i
? This will create a new dataset, continue? Yes
"ds002032" created with label "ds001421-1.0.1"
Transferring "dataset_description.json" - 100% complete 
Transferring ".bidsignore" - 100% complete 
Transferring "CHANGES" - 100% complete 
Transferring "README" - 100% complete 
Transferring "sub-01/ses-01/anat/sub-01_ses-01_T1w.json" - 100% complete 
Transferring "sub-01/ses-01/anat/sub-01_ses-01_T1w.nii" - 100% complete 
Transferring "sub-01/ses-01/pet/sub-01_ses-01_pet.json" - 100% complete 
Transferring "sub-01/ses-01/pet/sub-01_ses-01_pet.nii.gz" - 100% complete 
Transferring "sub-01/ses-02/anat/sub-01_ses-02_T1w.json" - 100% complete 
Transferring "sub-01/ses-02/anat/sub-01_ses-02_T1w.nii" - 100% complete 
Transferring "sub-01/ses-02/pet/sub-01_ses-02_pet.json" - 100% complete 
Transferring "sub-01/ses-02/pet/sub-01_ses-02_pet.nii.gz" - 100% complete 
=======================================================================
Upload Complete
To publish your dataset, go to https://openneuro.org/datasets/ds002032
=======================================================================

[codecov]

Codecov Report

Merging #1179 into master will decrease coverage by 0.02%.
The diff coverage is 8.33%.

@@            Coverage Diff             @@
##           master    #1179      +/-   ##
==========================================
- Coverage   33.07%   33.05%   -0.03%     
==========================================
  Files         300      300              
  Lines        4118     4124       +6     
  Branches      703      687      -16     
==========================================
+ Hits         1362     1363       +1     
- Misses       2498     2506       +8     
+ Partials      258      255       -3

Impacted Files	Coverage Δ
packages/openneuro-cli/src/upload.js	20.83% <0%> (-0.91%)	⬇️
packages/openneuro-cli/src/actions.js	17.02% <14.28%> (+0.35%)	⬆️
...ro-app/src/scripts/datalad/routes/file-display.jsx	81.81% <0%> (ø)	⬆️
...rc/scripts/datalad/dataset/dataset-description.jsx	33.33% <0%> (ø)	⬆️
.../src/scripts/front-page/email-subscription-box.jsx	82.75% <0%> (ø)	⬆️

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