Fix up the docs warning detected by the vale Acronym rule
What does this MR do and why?
This MR aims to solve the issue #276199 (closed)
File Change
doc/.vale/gitlab/Acronyms.yml
Warning Detected in File
administration/smime_signing_email.md
This MR aims to solve the issue #276199 (closed)
doc/.vale/gitlab/Acronyms.yml
administration/smime_signing_email.md