[DOC] Indicate that interpolation is NN above the EPI-to-T1w reportlet

[sarenseeley]

In reference to this issue: #1538.

Changes proposed in this pull request

Added the text "Note that Nearest Neighbor interpolation is used in the reportlets in order to highlight potential spin-history and other artifacts, whereas final images are resampled using Lanczos interpolation" to lines 105, 111, 117, and 123 of /fmriprep/viz/config.json

[welcome]

Thanks for opening this pull request! We have detected this is the first time for you to contribute to fMRIPrep. Please check out our contributing guidelines.
We invite you to list yourself as a fMRIPrep contributor, so if your name is not already mentioned, please modify the .zenodo.json file with your data right above Russ' entry. Example:

{
   "name": "Contributor, New FMRIPrep",
   "affiliation": "Department of fMRI prep'ing, Open Science Made-Up University",
   "orcid": "<your id>"
},
{
   "name": "Poldrack, Russell A.",
   "affiliation": "Department of Psychology, Stanford University",
   "orcid": "0000-0001-6755-0259"
},

Of course, if you want to opt-out this time there is no problem at all with adding your name later. You will be always welcome to add it in the future whenever you feel it should be listed.

[oesteban]

Hi @sarenseeley, thanks very much for your first PR. Do you plan to add your name to the zenodo file? (see automatic comment above).