readme: trim hero row to a single caption — drop the second caption line, fold the stills link into the gif caption

README.md

@@ -45,7 +45,8 @@ timeline, and an honest account of what worked and what didn't.
   <img src="docs/media/goldeneye-gh-preview.gif" width="64%"
        alt="~24 s gameplay montage from live play sessions">
   <br><em>All in-engine, running in the port — a ~24&nbsp;s gameplay montage
-  from live v0.4.0 play sessions, opening on the Runway tank.</em>
+  from live v0.4.0 play sessions, opening on the Runway tank ·
+  <a href="docs/index.md">16 level stills in the project index</a></em>
 </p>
 
 <table align="center" cellspacing="8" cellpadding="0">
@@ -60,8 +61,6 @@ timeline, and an honest account of what worked and what didn't.
       alt="Aztec, rendered by the port (v0.4.0 intro attract)"><br><small>Aztec</small></td>
   </tr>
 </table>
-<p align="center"><small>In-engine renders from the v0.4.0 intro attract —
-16 more in the <a href="docs/index.md">project index</a>.</small></p>
 
 ---