Merge pull request #56 from martinthomson/scope-v2

An alternative approach for scoping

charter.html

@@ -160,8 +160,7 @@ <h1 id="title">PROPOSED Private Advertising Technology Working Group Charter</h1
       <section id="scope" class="scope">
         <h2>Scope</h2>
         <p>
-            The Working Group will specify new web platform features intended to
-            be implemented in browsers or similar user agents. The purpose of
+            The Working Group will specify new web platform features. The purpose of
             these features is to support web advertising without compromising
             user privacy.  Here "privacy" minimally refers to appropriate
             processing of personal information.  Ways in which new features might
@@ -174,10 +173,12 @@ <h2>Scope</h2>
             state.
         </p>
         <p>
-          The Working Group may consider designs that allow user agents for the
-          same user — including non-browser agents, like Operating Systems — to
-          collaborate in providing advertising features.
-          </p>
+          The Working Group will produce specifications that are implemented by
+          user agents.  The implementation of specifications in user agents
+          might interoperate with or depend on functionality provided by other
+          entities.  In these cases, the Working Group
+          will <a href="#coordination">coordinate with other organizations</a>
+          to provide specifications for necessary functions.
         </p>
 
         <section id="section-out-of-scope">