Fix/update description of the 'deposit admin' view.

Deposits come from other sources than HAL now.

swh/web/templates/admin/deposit.html

@@ -23,8 +23,8 @@ See top-level LICENSE file for more information
 
 {% block content %}
   <p>
-    The table below displays the list of software deposits into the archive
-    submitted through <a href="https://hal.archives-ouvertes.fr/">HAL</a>.
+    The table below displays the list of software artifacts deposited to
+    Software Heritage.
   </p>
 
   <div>