add installation instructions to pkg packages

pkg/logging/lib/logging.dart

Index: pkg/logging/lib/logging.dart
diff --git a/pkg/logging/lib/logging.dart b/pkg/logging/lib/logging.dart
index 222ff1e426b67e03bc149dc934fecc660834543a..94bf5f3dfdc3d51412980b4561a347f552097a02 100644
--- a/pkg/logging/lib/logging.dart
+++ b/pkg/logging/lib/logging.dart
@@ -6,6 +6,22 @@
  * Provides APIs for debugging and error logging. This library introduces
  * abstractions similar to those used in other languages, such as the Closure JS
  * Logger and java.util.logging.Logger.
+ *
+ * ## Installing ##
+ *
+ * Use [pub][] to install this package. Add the following to your `pubspec.yaml`
+ * file.
+ *
+ *     dependencies:
+ *       logging: any
+ *
+ * Then run `pub install`.
+ *
+ * For more information, see the
+ * [logging package on pub.dartlang.org][pkg].
+ *
+ * [pub]: http://pub.dartlang.org
+ * [pkg]: http://pub.dartlang.org/packages/logging

[Andrei Mouravski, 2013/04/19 20:36:09]

I like this, could you replicate elsewhere?

[sethladd, 2013/04/19 20:39:21]

? this is used is the rest of the files.

[Andrei Mouravski, 2013/04/19 20:52:58]

Not the ones before this file (intl, http, args, etc.)

  */
 library logging;