Merge pull request #158 from creative-commoners/pulls/6/protected-docs

DOC Update extension hook examples to be protected

docs/en/index.md

@@ -78,7 +78,7 @@ use SilverStripe\Security\Member;
 
 class MyTOTPRegisterHandlerExtension extends Extension
 {
-    public function updateTotp(TOTPInterface $totp, Member $member)
+    protected function updateTotp(TOTPInterface $totp, Member $member)
     {
         $totp->setLabel($member->getCustomTOTPLabel());
         $totp->setIssuer('My web project');