bug #13087 Update link for (No|Admin)Recipient (kesselb)

This PR was merged into the 5.0 branch.

Discussion
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Update link for (No|Admin)Recipient

Looks like there is ` to much hence breaking the link.

![image](https://user-images.githubusercontent.com/3902676/74105011-6c0aac00-4b5a-11ea-92b0-b2df8c877a12.png)

https://symfony.com/doc/current/notifier#creating-sending-notifications

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Commits
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7cc5025 Update link for (No|Admin)Recipient

Author: wouterj

notifier.rst

@@ -354,16 +354,16 @@ set the notification content and icon.
 
 Symfony provides three types of recipients:
 
-:class:`Symfony\\Component\\Notifier\\Recipient\\NoRecipient``
+:class:`Symfony\\Component\\Notifier\\Recipient\\NoRecipient`
     This is the default and is useful when there is no need to have
     information about the receiver. For example, the browser channel uses
     the current requests's :ref:`session flashbag <flash-messages>`;
 
-:class:`Symfony\\Component\\Notifier\\Recipient\\Recipient``
+:class:`Symfony\\Component\\Notifier\\Recipient\\Recipient`
     This contains only the email address of the user and can be used for
     messages on the email and browser channel;
 
-:class:`Symfony\\Component\\Notifier\\Recipient\\AdminRecipient``.
+:class:`Symfony\\Component\\Notifier\\Recipient\\AdminRecipient`
     This can contain both email address and phonenumber of the user. This
     recipient can be used for all channels (depending on whether they are
     actually set).