biogeokaty/neon_stoich_flex_ms: Initial release

Final analysis code for publication of Dynarski, Katherine A.; Soper, Fiona M.; Reed, Sasha C.; Wieder, William R.; and Cleveland, Cory C. (2022). Patterns and controls of foliar nutrient stoichiometry and flexibility across United States forests. Accepted in Ecology.

Release contains code for cleaning and organizing NEON foliar and soil nutrient concentration and stoichiometry data, and code to generate analysis and figures for the manuscript.