Explicitly call out documentation links in "flutter create" (#114181)

The recent survey suggests that some people are not finding documentation after they get started with Flutter, so let's just give them links right away. It might not help everyone but there's not really any downside so...

Author: Hixie

packages/flutter_tools/lib/src/commands/create.dart

@@ -434,7 +434,7 @@ class CreateCommand extends CreateBase {
     globals.printStatus('Wrote $generatedFileCount files.');
     globals.printStatus('\nAll done!');
     final String application =
-      '${emptyArgument ? 'empty' : ''}${sampleCode != null ? 'sample' : ''} application';
+      '${emptyArgument ? 'empty ' : ''}${sampleCode != null ? 'sample ' : ''}application';
     if (generatePackage) {
       final String relativeMainPath = globals.fs.path.normalize(globals.fs.path.join(
         relativeDirPath,
@@ -476,6 +476,10 @@ class CreateCommand extends CreateBase {
 
       // Let them know a summary of the state of their tooling.
       globals.printStatus('''
+You can find general documentation for Flutter at: https://docs.flutter.dev/
+Detailed API documentation is available at: https://api.flutter.dev/
+If you prefer video documentation, consider: https://www.youtube.com/c/flutterdev
+
 In order to run your $application, type:
 
   \$ cd $relativeAppPath

packages/flutter_tools/test/commands.shard/permeable/create_test.dart

@@ -164,17 +164,23 @@ void main() {
         'lib/main.dart',
       ],
     );
+    expect(logger.statusText, contains('In order to run your application, type:'));
+    // check that we're telling them about documentation
+    expect(logger.statusText, contains('https://docs.flutter.dev/'));
+    expect(logger.statusText, contains('https://api.flutter.dev/'));
+    // check that the tests run clean
     return _runFlutterTest(projectDir);
   }, overrides: <Type, Generator>{
     Pub: () => Pub(
       fileSystem: globals.fs,
-      logger: globals.logger,
+      logger: logger,
       processManager: globals.processManager,
       usage: globals.flutterUsage,
       botDetector: globals.botDetector,
       platform: globals.platform,
       stdio: mockStdio,
     ),
+    Logger: () => logger,
   });
 
   testUsingContext('can create a skeleton (list/detail) app', () async {
@@ -597,7 +603,7 @@ void main() {
       platform: globals.platform,
       stdio: mockStdio,
     ),
-    Logger: ()=>logger,
+    Logger: () => logger,
   });
 
   testUsingContext('plugin example app depends on plugin', () async {