Inaccuracies and inconsistencies in hands-on sections in NGS Data Logistics Tutorial

There are multiple minor inaccuracies in the hands-on sections of the NGS data logistics tutorial. Nothing erroneous, but inaccurate and/or inconsistent that makes it harder to follow, especially for a novice. Overall, compared to other tutorials, the steps seem to be less thoroughly described, with some key details glossed over. Being an introductory tutorial, I think it's important that its hands-on sections are explicit and precise. Here are a few examples:
- While some sections include a last step "Hit Execute; This will produce [description of files]", others don't. (which raises doubts: did I miss a step? Or is this informational only?)
- There are no specific file renaming instructions for produced datasets; however, subsequent steps refer to renamed files. In most cases, there's a helpful explanation (`output_paired_coll (output of fastp tool)`), but in some the explanation is not quite so helpful: (`output (Input dataset)`: what input? there were many.)
- The "single dataset" icon next to the input dataset field name is incorrect in most cases: it should be a "dataset collection" icon (unless I am wrong?)

Review the hands-on sections of the NGS data logistics tutorial, comparing their execution instructions and dataset references with the other tutorials. Document which steps need explicit Execute guidance, dataset renaming instructions, clearer input descriptions, and corrected dataset or collection icons; done means the sections are consistent and precise for a novice.

Written by the indexing model from the issue text.