Extension docs: Make comments in IDL files generate paragraphs rather than

chrome/common/extensions/docs/static/sass/_api.scss

 // Uses vertical_rythm library from
 // http://compass-style.org/reference/compass/typography/vertical_rhythm/
 // as explained in _typography.scss
 @import "compass/typography/vertical_rhythm";
 
 .api {
   color: #333;
   font-size: 14px;
 
   .api-summary {
     td, th {
       padding: 5px 10px;
     }
   }
 
   .api-reference {
     .description {
       margin-left: 20px;
     }
-    table.innerTable {
-      margin: 10px 0;
-      td, th {
-        padding: 5px 10px;
-        border: 1px solid #eee;
-      }
-      th {
-        background: none;
+    table {
+      .innerTable {
+        margin: 10px 0;
+        td, th {
+          padding: 5px 10px;
+          border: 1px solid #eee;
+        }
+        th {
+          background: none;
+        }
       }
       p {
-        margin: 0;
+        margin-top: 0.75em;
+        margin-bottom: 0.75em;
+      }
+      p:first-child {
+        margin-top: 0;
       }
     }
     td, th {
       vertical-align: top;
       border: 1px solid #eee;
     }
     th {
       background: #fafafa;
     }
     h2 {
       background-color: darken($gray-light, 5%);
       padding: $default-padding;
       margin-left: $default-padding * -1;
       margin-right: $default-padding * -1;
     }
     h3 {
       margin-top: rhythm(2);
     }
   }
 
   .availability {
     color: #A03;
   }
 }