Fixes for package score: longer description and correct example filename (#56)

diff --git a/example/example_server.dart b/example/example.dart
similarity index 96%
rename from example/example_server.dart
rename to example/example.dart
index 288d630..c79373f 100644
--- a/example/example_server.dart
+++ b/example/example.dart
@@ -29,7 +29,7 @@
     exit(64);
   }
 
-  if (!FileSystemEntity.isFileSync('example/example_server.dart')) {
+  if (!FileSystemEntity.isFileSync('example/example.dart')) {
     throw StateError('Server expects to be started the '
         'root of the project.');
   }
diff --git a/pubspec.yaml b/pubspec.yaml
index c9419c9..a8fdc56 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: shelf_static
 version: 1.1.0-dev
-description: Static file server support for shelf
+description: Static file server support for the shelf package and ecosystem
 repository: https://github.com/dart-lang/shelf_static
 
 environment: