Fix 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/administration/auth/ldap/index.md
doc/administration/instance_limits.md
doc/raketasks/backup_restore.md
doc/security/webhooks.md
Acronym
- SASL
- GFM
- EBS
- LVM
- IDNA