Typo in the permission description

Problem/Motivation

In the permission description there is a typo at "admin/people/permissions/module/securitytxt". The text now says: "You will almost certinaly want to grant this permission to both the Anonymous and Authenticated user roles.", when it is suppose to say: "You will almost certainly want to grant this permission to both the Anonymous and Authenticated user roles.".

Steps to reproduce

Visit the permission page

Proposed resolution

Fix "certinaly" to "certainly"