edit pass on T3,4,5, updated images

src/site/docs/tutorials/shared-pkgs/index.markdown

Index: src/site/docs/tutorials/shared-pkgs/index.markdown
diff --git a/src/site/docs/tutorials/shared-pkgs/index.markdown b/src/site/docs/tutorials/shared-pkgs/index.markdown
index f638caf93bf3cdb20f83e77902acde8104b9622d..001bffaa7db383f5254e917950124b228ae64ce3 100644
--- a/src/site/docs/tutorials/shared-pkgs/index.markdown
+++ b/src/site/docs/tutorials/shared-pkgs/index.markdown
@@ -48,14 +48,14 @@ are available at the
 <a href="https://pub.dartlang.org/">pub.dartlang.org</a>
 repository.
 
-This target shows you how to use `pub`&mdash;a package manager
+This tutorial shows you how to use `pub`&mdash;a package manager
 that comes with Dart&mdash;to
 install one of the packages in the repository,
 the vector_math package.
 You can follow these same steps to install any package hosted at
 <a href="https://pub.dartlang.org/">pub.dartlang.org</a>;
 just change the package name when you get to that step.
-This target also describes some of the resources you can expect to find
+This tutorial also describes some of the resources you can expect to find
 in a well-built package.
 
 * [About the pubspec.yaml file](#about-pubspec)
@@ -64,6 +64,7 @@ in a well-built package.
 * [What did you get (and not get)?](#about-packages)
 * [Import libraries from a package](#use-package)
 * [Other resources](#other-resources)
+* [What next?](#what-next)
 
 ##About the pubspec.yaml file {#about-pubspec}
 
@@ -293,16 +294,18 @@ Note that you specify the filename, not the library name.
     See the <a href="https://pub.dartlang.org/doc/">pub documentation</a>
     to get started using and sharing packages.
   </li>
-  <li>
-    One important package that you will find there
-    is
-    <a href="https://pub.dartlang.org/packages/web_ui">web_ui</a>&mdash;a package
-    created by the Dart team that lets you use Web components and templating.
-    The
-    <a href="/docs/tutorials/web-ui/">next target</a> covers Web UI.
-  </li>
 </ul>
 
+##What next? {#what-next}
+
+One package at pub.dartlang.org is Polymer.dart,
+which makes writing web applications easier
+with data binding, templates, and declarative event handlers.
+Check out the next tutorial,
+[Define a Custom Element](/docs/tutorials/polymer-intro),
+for an introduction to Polymer.
+
+
 {% endcapture %}
 
 {% include tutorial.html %}