Test for British spellings of authorize

Variants on this word were not in the British test, and I spotted
them in a merge request I'm working on for Create.

doc/.vale/gitlab/British.yml

@@ -19,6 +19,10 @@ swap:
   analyse: analyze
   annexe: annex
   apologise: apologize
+  authorise: authorize
+  authorised: authorized
+  authorisation: authorization
+  authorising: authorizing
   behaviour: behavior
   busses: buses
   calibre: caliber

doc/administration/auth/crowd.md

@@ -84,7 +84,7 @@ could not authorize you from Crowd because invalid credentials
 ```
 
 Ensure the Crowd users who need to sign in to GitLab are authorized to the
-[application](#configure-a-new-crowd-application) in the **Authorisation** step.
+[application](#configure-a-new-crowd-application) in the **Authorization** step.
 This could be verified by trying "Authentication test" for Crowd (as of 2.11).
 
-![Example Crowd application authorisation configuration](img/crowd_application_authorisation.png)
+![Example Crowd application authorization configuration](img/crowd_application_authorisation.png)

doc/development/secure_coding_guidelines.md

@@ -595,7 +595,7 @@ response = GitLab::HTTP.perform_request(Net::HTTP::Get, 'https://gitlab.com', ss
 
 ##### TLS 1.2
 
-**Golang** does support multiple cipher suites that we do not want to use with TLS 1.2. We need to explicitly list authorised ciphers:
+**Golang** does support multiple cipher suites that we do not want to use with TLS 1.2. We need to explicitly list authorized ciphers:
 
 ```golang
 func secureCipherSuites() []uint16 {