DOCS-2941: create more links between rs status documents
DOCS-2628: draft of new allocation strategy document
DOCS-2924 additional downgrade procedures
htaccess for 2.6 downgrade and compatibility pages
DOCS-2949: refactor upgrade introduction
DOCS-2949: clean up to upgrade page structure
DOCS-2949: update structure of downgrade document, cleanup here and there
DOCS-2949: update compatibility page title
DOCS-2949: cleanup sharded cluster prereqs
DOCS-2949: split authorization upgrade out of general authorization upgrade procedure
DOCS-2949: add redirect for authorization document
DOCS-2949: new style procedures for 2.6 replica set upgrades
DOCS-2949: edits to new authorization conversion
minor: adding missing field
DOCS-2920 specify nodes to run against and access info
DOCS-2949: updates to preparedness
DOCS-2949: upgrade procedure edits
DOCS-2949: edits to auth upgrade
Rm extra comma
Rm another extra comma