one-liners for the remaining top-50 dart:core classes

sdk/lib/core/uri.dart

Index: sdk/lib/core/uri.dart
diff --git a/sdk/lib/core/uri.dart b/sdk/lib/core/uri.dart
index aa00f638d88419222051b5bdd3ad7d72827fd2fc..328b9950d047151eba55b8bc59bb43463d325856 100644
--- a/sdk/lib/core/uri.dart
+++ b/sdk/lib/core/uri.dart
@@ -5,7 +5,15 @@
 part of dart.core;
 
 /**
- * A parsed URI, as specified by RFC-3986, http://tools.ietf.org/html/rfc3986.
+ * A parsed URI, such as a URL.
+ *
+ * **See also:**
+ *
+ * * [URIs][uris] in the [library tour][libtour]
+ * * [RFC-3986](http://tools.ietf.org/html/rfc3986)
+ *
+ * [uris]: http://www.dartlang.org/docs/dart-up-and-running/contents/ch03.html#ch03-uri
+ * [libtour]: http://www.dartlang.org/docs/dart-up-and-running/contents/ch03.html
  */
 class Uri {
   final String _host;