Team photo on web page

Author: pavpanchekha

www/doc/1.4/release-notes.html

@@ -26,7 +26,8 @@ <h1>Herbie 1.4 Release Notes</h1>
     at work making Herbie more versatile and easier to use.
   </p>
 
-  <img width="100%" src="team.png" style="display: block; margin: 4em 0;" />
+  <img width="100%" src="team.png" style="display: block; margin: 4em 0; border-radius: 6px;"
+       alt="The Herbie team, working over Zoom to bring you Herbie 1.4" />
 
   <h2>Major features of this release</h2>