Tutorial Improvements

[JustinPrivitera]

There are various sections of our tutorial that could use improvement. I'll start a list here and add to it as I work through the tutorials. I'll work on some of these and check them off as I do, but any I don't check off are fair game.

Section 1

• [x] 1.3 should tell you where you are likely to find the tutorial_data folder
• [ ] 1.6 number 6 "play with them" - would be nice if there was more guidance here for what these things do
• [x] 1.7.3 should clearly say that lineout mode is only for 2D
• [ ] 1.8 and 1.9 are stubs. For the tutorial to stand on its own, it would be good if these sections were expanded.

Section 2

• [x] 2.1.1 needs reworked text
• [x] 2.1.2.1 - but what is a lineout? - more explanations for the whole section
• [x] 2.1.2.1 - spelling error in last paragraph
• [ ] 2.2.2.1 - reorder the steps to make more sense
• [x] 2.3 - should have some text to go with the link
• [ ] 2.4.1 - there are discrepancies between the tutorial_data folder provided in our tutorial and the tutorial_data folder provided as a tarball in our visit/data folder. For example, noise2d.silo is included in the former and not the latter.