minor #13201 Update templates.rst (Yohann76)

This PR was submitted for the 5.0 branch but it was merged into the 4.4 branch instead (closes #13201).

Discussion
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Update templates.rst

added alt attribute

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Commits
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d7d8c33 Update templates.rst

Author: javiereguiluz

templates.rst

@@ -655,7 +655,7 @@ following code to display the user information is repeated in several places:
 
     {# ... #}
     <div class="user-profile">
-        <img src="{{ user.profileImageUrl }}"/>
+        <img src="{{ user.profileImageUrl }}" alt="{{ user.fullName }}"/>
         <p>{{ user.fullName }} - {{ user.email }}</p>
     </div>