Update timings of earlier lessons

[marwahaha]

@rbavery and I taught a workshop this week. This is approximately the time Ryan spent while teaching the earlier lessons.

[jsta]

Thanks for this! Have you seen this thread with feedback on workshop timings? datacarpentry/geospatial-workshop#31

[marwahaha]

For sure. I didn't read the whole thread. I don't understand, would you like me to leave comments there and you will review it later?

[jsta]

I linked that thread more so to create a trail of breadcrumbs for future time adjustment proposals. Anyway, having linked threads will get us part way there so I think there's no need to comment there also.

I think the adjustments you propose to lessons 1 and 2 are OK but I'm worried about lesson 3. You propose halving its timing but maybe other workshops have needed time closer to 40 min? Hard to tell because most of the past workshops have reported total time instead of a breakdown of teaching versus exercises.