Metatranscriptomic tutorial: ideas for improvements

I taught the metatranscriptomics tutorial last week.

Here are some ideas to improve it
1. Change inputs data
1. To get more diversity to show
2. Use >=2 datasets
2. Make the biological question more clear
3. Move SortMeRNA after MetaPhlAn, right before HUMAnN when we need it to limit confusion
4. Expand explanation of the purpose of SortMeRNA
5. Add explanation about concepts like taxonomy, tree of life, community profile, etc
6. Add more visualizations and comparison visualizations
7. Relate to the other questions

Locate the metatranscriptomics tutorial and review its current datasets, biological question, tool order, explanations, and visualizations. Turn the listed ideas into a scoped improvement plan, then verify that the revised tutorial addresses the requested concepts, comparisons, and relationships to other questions.

Written by the indexing model from the issue text.