Enable mac tests (#77)

* fix: Doc directive is missing a closing tag.

* enable macos integration test in pipeline

* Update supported platforms in README

Author: jsiedentop

.github/workflows/test.yml

@@ -55,9 +55,8 @@ jobs:
       - run: flutter pub run webcrypto:setup
       - run: flutter test
       - run: flutter test --platform chrome
-      # TODO: Enable macos desktop when supported
-      #- run: flutter test integration_test/webcrypto_test.dart -d macos
-      #  working-directory: ./example
+      - run: flutter test integration_test/webcrypto_test.dart -d macos
+        working-directory: ./example
       - uses: nanasess/setup-chromedriver@v2
       - name: Run integration_test with chromedriver
         working-directory: ./example

README.md

@@ -12,9 +12,7 @@ browser, this package features a native implementation embedding
 web browser this package wraps the [`window.crypto`][window-crypto] APIs and
 providing the same Dart API as the native implementation.
 
-This way, `package:webcrypto` provides the same crypto API on multiple
-platforms. Initially targeting Flutter for **Android**, **iOS** and **Web**,
-with other platforms following as soon as the build system allows.
+This way, `package:webcrypto` provides the same crypto API on **Android**, **iOS**, **Web**, **Windows**, **Linux** and **Mac**.
 
 **Example**
 ```dart

lib/src/webcrypto/webcrypto.hmac.dart

@@ -197,7 +197,7 @@ abstract class HmacSecretKey {
   /// timing attacks. To validate signatures use [verifyBytes] or [verifyStream]
   /// instead, these methods computes a signature and does a
   /// fixed-time comparison.
-  /// {@template}
+  /// {@endtemplate}
   Future<Uint8List> signBytes(List<int> data);
 
   /// Compute an HMAC signature of given [data] stream.