Commits

Merging in latest from upstream (HDF5VOL/daos-vol:refs/heads/master) * commit '970e541f94060cf86b73678926848960636c7cd6': User's Guide updates
Merging in latest from upstream (HDF5VOL/daos-vol:refs/heads/master) * commit '970e541f94060cf86b73678926848960636c7cd6': User's Guide updates