minor symfony#11954 Update remember_me.rst (alexsaalberg049)

This PR was submitted for the 4.3 branch but it was merged into the 4.2 branch instead (closes symfony#11954).

Discussion
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Update remember_me.rst

Change sentence to make sense in its context by adding the word 'not'

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113c63a Update remember_me.rst

Author: javiereguiluz

security/remember_me.rst

@@ -167,7 +167,7 @@ to access protected resources as if the user had actually authenticated upon
 visiting the site.
 
 In some cases, however, you may want to force the user to actually re-authenticate
-before accessing certain resources. For example, you might allow "remember me"
+before accessing certain resources. For example, you might not allow "remember me"
 users to change their password. You can do this by leveraing a few special "roles"::
 
     // src/Controller/AccountController.php