Sentinel Routine Querying Tool Documentation

Pull request #1407: Documentation Sprint 102

Merge in SENTINEL/sentinel-routine-querying-tool-documentation from routine_maintenance to master

* commit 'a08036a116f8c363ffeb7d4e51ab9b4794f675e4':
  DEV-33892 updated COMBORDER note 2 for clarity
  DEV-31074; changed programmeer-defined to user-defined throughout file756
  DEV-31074; made additional edits after QC
  DEV-33714; remoded parenthesis from Note 1 in NUMEVENTS descrip
  DEV-31074; changed execution to run within additional files
  DEV-31074; changed "an execution of the QRP" to "A single execution of the QRP"