* Update configuration.md
Corrected several typos and included words that were originally left out to ensure proper grammar in document.
* Update docs/sources/administration/configuration.md
Co-authored-by: Dave Henderson <dhenderson@gmail.com>
Co-authored-by: Diana Payton <52059945+oddlittlebird@users.noreply.github.com>
Co-authored-by: Dave Henderson <dhenderson@gmail.com>