Add account deletion details (#1152)

Update data-use.html

Co-authored-by: Mad Ball (@madprime)

open_humans/templates/pages/data-use.html

@@ -48,7 +48,11 @@ <h3>The Information We Collect</h3>
       parties are responsible for their own data practices.
     </p>
     <p>
-      Below is a more detailed explanation of the information we collect and use.
+      Below is a more detailed explanation of the information we collect and use. And you 
+      you can find a full list of our
+      <a href='https://www.openhumans.org/data-processing-activities/'>
+        records of personal data processing activities
+      </a>.
     </p>
     <h4>Information We Collect Directly From You</h4>
     <p>
@@ -209,15 +213,22 @@ <h3>How We Disclose Your Information</h3>
       another entity as part of that deal. If that happens, we will notify you and let
       you know what your options are.
     </p>
-    <h3>Account Disabling</h3>
+    <h3>Account Deletion</h3>
     <p>
-      You may disable your Open Humans account at any time. This means your user profile
-      will no longer be visible on our site, and other Open Humans users will no longer
-      have access on our site to the personal data you’ve shared with them.
+      You may delete your Open Humans account at any time. To do so, go to your
+      <a href="{% url 'my-member-settings' %}">account management page</a>.
     </p>
     <p>
-      We may also continue to display some information you have made publicly available
-      through Open Humans (comments, for example).
+      When you delete your account or files, they are immediately removed. Your
+      account data is deleted in our database, as are any data files associated with
+      your account. We may continue to retain and display some information you have
+      made publicly available through Open Humans (comments, for example).
+    </p>
+    <p>
+      Because Open Humans might be the only place a member has stored highly
+      valuable data, we also want to protect members from accidental data loss.
+      Secure back-ups for our database and files are performed and kept in
+      restricted storage, and are permanently deleted after 60 days.
     </p>
     <h3>Changes to This Policy</h3>
     <p>