Don't run Vale on SVG replacement codes

The SVG replacement codes can't be guaranteed to be
real words, but it doesn't matter. They shouldn't be
linted by Vale. This MR proposes a TokenIgnores
line that skips items matching a regex of **{this}**.

Note that tier badges, blessedly, use **(this)**
instead of curly braces, so we can lint them
separately.

.vale.ini

@@ -7,3 +7,6 @@ MinAlertLevel = suggestion
 
 [*.md]
 BasedOnStyles = gitlab
+
+# Ignore SVG markup
+TokenIgnores = (\*\*\{\w*\}\*\*)

doc/user/admin_area/license.md

@@ -32,7 +32,7 @@ is locked.
 
 ## Uploading your license
 
-The very first time you visit your GitLab EE installation signed in as an admin,
+The very first time you visit your GitLab EE installation signed in as an administrator,
 you should see a note urging you to upload a license with a link that takes you
 to **Admin Area > License**.
 
@@ -94,13 +94,13 @@ You can review the license details at any time in the **License** section of the
 ## Notification before the license expires
 
 One month before the license expires, a message informing about the expiration
-date is displayed to GitLab admins. Make sure that you update your
+date is displayed to GitLab administrators. Make sure that you update your
 license, otherwise you miss all the paid features if your license expires.
 
 ## What happens when your license expires
 
 In case your license expires, GitLab locks down some features like Git pushes,
-and issue creation, and displays a message to all admins to inform of the expired license.
+and issue creation, and displays a message to all administrators to inform of the expired license.
 
 To get back all the previous functionality, you must upload a new license.
 To fall back to having only the Core features active, you must delete the