* First attempt at documenting the RectangleTree.
* Add Insert() and Delete() to RectangleTree; they have a nicer user interface than what was previously there.
* Add R-tree documentation.
* Fix default arguments for RectangleTree typedefs.
* Fix some minor documentation display issues.
* Fix link.
* Fix links.
* Try to clarify what trees are a little bit.
* Apply suggestions from code review
Co-authored-by: Dirk Eddelbuettel <edd@debian.org>
* Update doc/user/core/trees/r_tree.md
Co-authored-by: Dirk Eddelbuettel <edd@debian.org>
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Co-authored-by: Dirk Eddelbuettel <edd@debian.org>
Ryan Curtin