DOCS-1975 copy edit tip

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-1992: fixing formating of table
minor: updating link
Fix typos in 2.6 release notes for cleanupOrphan
index-reorg: initial pass & toc-tree-ification
index-reorg: adding index reference section
build: fixing table generation
index-reorg: correcting reference table sadness
index-reorg: more breaking up of concepts
index-reorg: ensuring files only appear in one toctree
index-reorg: repositioning the special indexes & breaking out index properties
index-reorg: fixing formatting
index-reorg breaking out the geo tutorials
index-reorg: breaking out geo tutorials
index-reorg: making landing pages spec-y
index-reorg: index tutorials landing page
index-reorg: updating toctrees and dfn lists for concepts pages
index-reorg: debugging toc non-generation sadness
index-reorg: fixing embarrassing include issues
index-reorg: correcting reference flags