Add Nextflow template

[edmundmiller]

Reasons for making this change: Nextflow community member, I'd love to start a new repo and be able to select Nextflow. I couldn't tell from the docs if that would happen here.

https://www.nextflow.io/docs/edge/tracing.html https://github.com/nextflow-io/hello/blob/master/.gitignore https://github.com/nf-core/rnaseq/blob/3.11.2/.gitignore

If this is a new template:

• Link to application or project’s homepage: https://www.nextflow.io/

[github-actions[bot]]

This PR is stale because there have been no updates in 90 days. It will close after 180 days of inactivity. Leave a comment if you want to keep it open :smile: