Update notes for installation of R and Rtools on macOS
Updated Generating a SSH Key Pair (mediawiki)
Updated Summer (mediawiki)
Updated formatting and moved 2021 wiki link to this page.
Updated Home (markdown)
Updated _Sidebar (markdown)
Updated External display section.
Updated Diversity analyses (markdown)
Added details for PERMANOVA and ANOSIM tests.
updated plot sizes
Initial version