Adjust indent size; fix rendering of strings.

static/api.css

@@ -17,7 +17,7 @@ div.json {
 
 div.indent {
     display: inline-block;
-    padding-left: 4em;
+    padding-left: 2em;
 }
 
 span.code {

templates/api.mako

@@ -22,7 +22,7 @@
         ${do_indent(indent)}
         ]
     % else:
-        ${obj | h}
+        ${repr(obj) | h}
     % endif
 </%def>\
 <!DOCTYPE html>