portico: Add new features to /features page.

templates/corporate/features.html

@@ -85,7 +85,7 @@
                 <h3>Stream-wide announcements</h3>
                 <h3>Desktop notifications</h3>
                 <h3>Audible notifications</h3>
-                <h3>Emails for important missed messages</h3>
+                <h3>Message notification emails</h3>
                 <h3>Alert words</h3>
                 <h3>Optional weekly digest emails</h3>
             </div>
@@ -169,10 +169,13 @@
         </a>
         <a class="feature-block" href="/help/star-a-message" target="_blank" rel="noopener noreferrer">
             <h3>STARRED MESSAGES</h3>
-            <p>Keep a todo list of messages to come back to, or keep
+            <p>Use starred messages as a todo list, or keep track of interesting
-            track of interesting conversations.</p>
+            conversations.</p>
+        </a>
+        <a class="feature-block" href="/help/marking-messages-as-unread" target="_blank" rel="noopener noreferrer">
+            <h3>MARK AS UNREAD</h3>
+            <p>Mark messages as unread to return to them later.</p>
         </a>
-
         <a class="feature-block" href="/help/analytics" target="_blank" rel="noopener noreferrer">
             <h3>STATISTICS</h3>
             <p>Zulip has a powerful set of analytics available to
@@ -184,7 +187,8 @@
         </a>
         <a class="feature-block" href="/help/status-and-availability" target="_blank" rel="noopener noreferrer">
             <h3>TEAM AVAILABILITY</h3>
-            <p>Let others know whether you're around with emoji statuses and availability.</p>
+            <p>Let others know whether you're around with emoji statuses and
+            availability, or choose “invisible” mode.</p>
         </a>
         <a class="feature-block" href="/help/stream-permissions" target="_blank" rel="noopener noreferrer">
             <h3>PRIVATE STREAMS</h3>
@@ -211,6 +215,10 @@
             <h3>TYPING NOTIFICATIONS</h3>
             <p>Know when other users are composing messages to you.</p>
         </a>
+        <a class="feature-block" href="/help/read-receipts" target="_blank" rel="noopener noreferrer">
+            <h3>READ RECEIPTS</h3>
+            <p>Check who has read any message, no matter who sent it.</p>
+        </a>
         <a class="feature-block" href="/help/view-and-edit-your-message-drafts" target="_blank" rel="noopener noreferrer">
             <h3>SAVED DRAFTS</h3>
             <p>Zulip’s drafts make it easy to write longer messages
@@ -287,8 +295,8 @@
         <a class="feature-block" href="/help/custom-profile-fields" target="_blank" rel="noopener noreferrer">
             <h3>CUSTOM PROFILE FIELDS</h3>
             <p>
-                Use Zulip to store directory information, links to social
+                Use Zulip to store directory information, pronouns, birthdays,
-                media profiles, food preferences, or anything else.
+                links to external accounts, or anything else.
             </p>
         </a>
         <a class="feature-block" href="/help/roles-and-permissions" target="_blank" rel="noopener noreferrer">