updating CONTRIBUTING to reflect keeping index.html up to date with m…

…aster

CONTRIBUTING.md

@@ -2,8 +2,10 @@
 
 * Before you open a ticket or send a pull request, [search](https://github.com/documentcloud/backbone/issues) for previous discussions about the same feature or issue. Add to the earlier ticket if you find one.
 
-* Before sending a pull request for a feature, be sure to have [tests](http://backbonejs.org/test/test.html).
+* Before sending a pull request for a feature or bug fix, be sure to have [tests](http://backbonejs.org/test/test.html).
+
+* If your pull request affects Backbone's public API, make relevant changes to the [documentation](https://github.com/documentcloud/backbone/blob/master/index.html). If appropriate, also add a line in the "Change Log" section.
 
 * Use the same coding style as the rest of the [codebase](https://github.com/documentcloud/backbone/blob/master/backbone.js).
 
-* In your pull request, do not add documentation or re-build the minified `backbone-min.js` file. We'll do those things before cutting a new release.
+* In your pull request, do not re-build the minified `backbone-min.js` file. We'll do that before cutting a new release.

index.html

@@ -613,7 +613,14 @@ <h2 id="introduction">Introduction</h2>
       to execute them.
     </p>
 
-    <h2 id="upgrading">Upgrading to 0.9.9</h2>
+    <h2 id="upgrading">Upgrading to Edge</h2>
+
+    <p>
+      You're reading the docs for an unreleased version. See the 
+      <a href="#changelog">change log</a>.
+    </p>
+
+    <h2>Upgrading to 0.9.9</h2>
 
     <p>
       Backbone <b>0.9.9</b> should be considered as a release candidate
@@ -3824,6 +3831,20 @@ <h2 id="faq">F.A.Q.</h2>
 
     <h2 id="changelog">Change Log</h2>
 
+    <b class="header">Edge</b> &mdash; <small><i>Not yet released</i></small> &mdash; <a href="https://github.com/documentcloud/backbone/compare/0.9.9...master">Diff</a><br />
+    <ul style="margin-top: 5px;">
+      <li>
+        Model validation is no longer enforced by default upon
+        construction or in Model#set.
+        Models can be constructed (and added to collections) even if
+        they fail validation now, unless <tt>{validate: true}</tt> is passed
+      </li>
+      <li>
+        <tt>View#make</tt> has been removed. You'll need to use <tt>$</tt> directly to
+        construct DOM elements now.
+      </li>
+    </ul>
+
     <b class="header">0.9.9</b> &mdash; <small><i>Dec. 13, 2012</i></small> &mdash; <a href="https://github.com/documentcloud/backbone/compare/0.9.2...0.9.9">Diff</a><br />
     <ul style="margin-top: 5px;">
       <li>