Merge branch '6.4' into 7.0

* 6.4:
  [Security] Remove duplicated line
  Formatting typo
  [AssetMapper] Minor
  [Container] Missing link RST link begin
  Minor: remove duplicated lines

Author: javiereguiluz

frontend/asset_mapper.rst

@@ -1012,8 +1012,8 @@ both ``app`` and ``checkout``:
 
     {# templates/products/checkout.html.twig #}
     {#
-        Override an "importmap" block in base.html.twig.
-        If you don't have this, add it around the {{ importmap('app') }} call.
+        Override an "importmap" block from base.html.twig.
+        If you don't have that block, add it around the {{ importmap('app') }} call.
     #}
     {% block importmap %}
         {# do NOT call parent() #}

reference/constraints/UniqueEntity.rst

@@ -269,7 +269,7 @@ the combination value is unique (e.g. two users could have the same email,
 as long as they don't have the same name also).
 
 If you need to require two fields to be individually unique (e.g. a unique
-``email`` *and* a unique ``username``), you use two ``UniqueEntity`` entries,
+``email`` and a unique ``username``), you use two ``UniqueEntity`` entries,
 each with a single field.
 
 .. include:: /reference/constraints/_groups-option.rst.inc

security.rst

@@ -625,9 +625,6 @@ are public). On the other hand, all pages that you want to be *aware* of a logge
 user have to be under the same firewall. So if you want to display a *"You are logged in
 as ..."* message on every page, they all have to be included in the same firewall.
 
-The same firewall can have many modes of authentication. In other words, it
-enables many ways to ask the question *"Who are you?"*.
-
 You'll learn how to restrict access to URLs, controllers or
 anything else within your firewall in the :ref:`access control
 <security-access-control>` section.

service_container.rst

@@ -1367,7 +1367,7 @@ and ``site_update_manager.normal_users``. Thanks to the alias, if you type-hint
 ``SiteUpdateManager`` the first (``site_update_manager.superadmin``) will be passed.
 
 If you want to pass the second, you'll need to :ref:`manually wire the service <services-wire-specific-service>`
-or to create a named ref:`autowiring alias <autowiring-alias>`.
+or to create a named :ref:`autowiring alias <autowiring-alias>`.
 
 .. caution::