minor #5081 [Cookbook][Session] some language tweaks (xabbuh)

This PR was merged into the 2.3 branch.

Discussion
----------

[Cookbook][Session] some language tweaks

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets |

Commits
-------

5377525 some language tweaks

cookbook/session/locale_sticky_session.rst

@@ -116,10 +116,10 @@ before the ``FirewallListener``, which is responsible for handling authenticatio
 setting the user token on the ``TokenStorage``, you have no access to the user
 which is logged in.
 
-Let's pretend you have defined a ``locale"`` property on your ``User`` entity
-and you want to use this as the locale for the given user. To accomplish this,
-you can hook into the login process and update the user's session with the
-this locale value before they are redirected to their first page.
+Assumed you have defined a ``locale`` property on your ``User`` entity and
+you want to use this as the locale for the given user. To accomplish this,
+you can hook into the login process and update the user's session with this
+locale value before they are redirected to their first page.
 
 To do this, you need an event listener for the ``security.interactive_login``
 event: