Update the domintro section. (Fixes #76)

spec.bs

@@ -185,44 +185,59 @@ Each {{URLPattern}} object has an associated <dfn for=URLPattern>search componen
 Each {{URLPattern}} object has an associated <dfn for=URLPattern>hash component</dfn>, a [=component=], which must be set upon creation.
 
 <dl class="domintro non-normative">
-  <dt><code>{{URLPattern}} . {{URLPattern/protocol}}</code>
+  <dt><code>|urlPattern| = new {{URLPattern/constructor(input, baseURL)|URLPattern}}(|input|, |baseURL|)</code></dt>
+  <dd class=allow-2119>
+    Constructs a new URLPattern object.  The |input| may be a {{URLPatternInit}} dictionary or a string.  If |input| is a string, then an optional |baseURL| string may also be provided.
+  </dd>
+
+  <dt><code>|matches| = |urlPattern|.{{URLPattern/test(input, baseURL)|test}}(|input|, |baseURL|)</code></dt>
+  <dd class=allow-2119>
+    Tests if |urlPattern| matches the given arguments.  The |input| may be a {{URLPatternInit}} dictionary or a string.  If |input| is a string, then an optional |baseURL| string may also be provided.  The returned |matches| value is a boolean.
+  </dd>
+
+  <dt><code>|result| = |urlPattern|.{{URLPattern/exec(input, baseURL)|exec}}(|input|, |baseURL|)</code></dt>
+  <dd class=allow-2119>
+    Executes the |urlPattern| against the given arguments.  The |input| may be a {{URLPatternInit}} dictionary or a string.  If |input| is a string, then an optional |baseURL| string may also be provided.  If the arguments did not match the |urlPattern|, then |result| will be null.  If the arguments did match, then |result| will be a {{URLPatternResult}} providing details about values that matched groups within |urlPattern|.
+  </dd>
+
+  <dt><code>|urlPattern|.{{URLPattern/protocol}}</code></dt>
   <dd>
-    <p>The normalized protocol pattern string.
+    <p>Returns |urlPattern|'s normalized protocol pattern string.
   </dd>
 
-  <dt><code>{{URLPattern}} . {{URLPattern/username}}</code>
+  <dt><code>|urlPattern|.{{URLPattern/username}}</code></dt>
   <dd>
-    <p>The normalized username pattern string.
+    <p>Returns |urlPattern|'s normalized username pattern string.
   </dd>
 
-  <dt><code>{{URLPattern}} . {{URLPattern/password}}</code>
+  <dt><code>|urlPattern|.{{URLPattern/password}}</code></dt>
   <dd>
-    <p>The normalized password pattern string.
+    <p>Returns |urlPattern|'s normalized password pattern string.
   </dd>
 
-  <dt><code>{{URLPattern}} . {{URLPattern/hostname}}</code>
+  <dt><code>|urlPattern|.{{URLPattern/hostname}}</code></dt>
   <dd>
-    <p>The normalized hostname pattern string.
+    <p>Returns |urlPattern|'s normalized hostname pattern string.
   </dd>
 
-  <dt><code>{{URLPattern}} . {{URLPattern/port}}</code>
+  <dt><code>|urlPattern|.{{URLPattern/port}}</code></dt>
   <dd>
-    <p>The normalized port pattern string.
+    <p>Returns |urlPattern|'s normalized port pattern string.
   </dd>
 
-  <dt><code>{{URLPattern}} . {{URLPattern/pathname}}</code>
+  <dt><code>|urlPattern|.{{URLPattern/pathname}}</code></dt>
   <dd>
-    <p>The normalized pathname pattern string.
+    <p>Returns |urlPattern|'s normalized pathname pattern string.
   </dd>
 
-  <dt><code>{{URLPattern}} . {{URLPattern/search}}</code>
+  <dt><code>|urlPattern|.{{URLPattern/search}}</code></dt>
   <dd>
-    <p>The normalized search pattern string.
+    <p>Returns |urlPattern|'s normalized search pattern string.
   </dd>
 
-  <dt><code>{{URLPattern}} . {{URLPattern/hash}}</code>
+  <dt><code>|urlPattern|.{{URLPattern/hash}}</code></dt>
   <dd>
-    <p>The normalized hash pattern string.
+    <p>Returns |urlPattern|'s normalized hash pattern string.
   </dd>
 </dl>