Add photo

Imitating what is done in the colophon of Daring Fireball, as well as
Nolanlawson.com and other web-sites that are maintained by guys related
To tech

colophon.html

@@ -4,6 +4,22 @@
   <p>It is written by Tony Chen. On his national identity-document, his name is printed as "Tan Pheng Heong (Chen Bingxiong)".
     As far as he can recall, he had no say in how his name was printed on that document. He chose the name "Tony" but not his surname.
   </p>
+  <table>
+    <tr>
+      <td>
+        <img src="IMG-20180205-WA0005.jpg" alt="photo of Tony Chen at a meat-free 
+                                                restaurant in Singapore, taken in the year 2018 A.D."
+             height="300"
+             width="400">
+        </td>
+      </tr>
+    <tr>
+      <td><i>
+        Photograph by Diana.
+        </i>
+        </td>
+      </tr>
+    </table>
   <h3>Server
   </h3>
 <p>The web-site is hosted on <a href="https://pages.github.com/">GitHub Pages</a>.