Topic addition: "ome-zarr-converters"

[joshmoore]

At the recent Next generation bioimage analysis workflows hackathon in Zürich, a few other OME-Zarr converters were worked on. After a question about how we can make them more findable, the "ome-zarr-converter topic (https://github.com/topics/ome-zarr-converter) was added to a handful. I'd like to propose that we add the topic here as well as on https://github.com/glencoesoftware/isyntax2raw. We may eventually want to go further and provide a more dedicated list (here in the README, on ngff.o.org, etc.) but for the moment, it provides a low-overhead method of increasing discoverability.

[melissalinkert]

Added to https://github.com/topics/ome-zarr-converter; I don't have permission to do that for https://github.com/glencoesoftware/isyntax2raw, which I think is fine for now given the state of support for that repo.

[joshmoore]

Thanks, @melissalinkert.