Clarify deprecation message and README text.

PiperOrigin-RevId: 205305246

Author: nshahan

lib/angular_components.dart

@@ -219,7 +219,7 @@ export 'theme/module.dart';
 export 'utils/async/async.dart';
 
 /// A convenience list of all Directives exposed by this package.
-@Deprecated('Use the specific directives in your app for smaller code size.')
+@Deprecated('List the directives used by your app for smaller code size.')
 const List<dynamic> materialDirectives = const [
   AutoDismissDirective,
   AutoFocusDirective,

lib/material_card/README.md

@@ -3,7 +3,7 @@
 Material Card is card styling provided by the Google material team also known as
 mdc-web. This is a wrapper to allow the style to be used in AngularDart
 applications. For documentation on how to use these styling please see the [mdc
-documentation][docs] and examples can be found [here][demo].
+documentation][docs]. Examples can be found [here][demo].
 
 [docs]: https://github.com/material-components/material-components-web/tree/master/packages/mdc-card
 [demo]: https://material-components-web.appspot.com/card.html
@@ -12,8 +12,8 @@ documentation][docs] and examples can be found [here][demo].
 
 The styles are provided by
 `package:angular_components/css/mdc_web/card/mdc-card.scss.css`. To use
-these styles in an angular component simply add it as a `styleUrls` value in
-your `Component` annotation. It is suggested that the style is added before any
+these styles in an Angular component simply add it as a `styleUrls` value in
+your `Component` annotation. We suggest that the style be added before any
 component specific styling so you can easily override style values as needed.
 
 ```dart