misc cleanup

[teixeirak]

• [x] Either spell out crown position or use CP consistently.
• [x] same for xylem porosity

[teixeirak]

NP comments that it would be easier with less acronyms, so better to spell out.

[teixeirak]

issue #62 has become intractable. Moving remaining items here:

• [x] review New Phyt instructions for authors, identify & work on needed changes.

• [x] add supplementary info tables list at end of document

supplementary info

• [x] make sure each table has a descriptive heading/complete caption

table S3-

• [x] clean up formatting (e.g., remove "NA"s)
• [x] maybe add stats from pointer year analysis?

[teixeirak]

• [x] redo word count

[teixeirak]

Done!