[examples][frameworks] Add missing examples and add a test to ensure every framework has an example (#4372)

* Add test to frameworks

* Add example for Docusaurus v2

* Add example for ionic-angular

* Update READMEs

* Use existing versions

* Reset yarn.lock

* Add schema validation and add missing Scully.io logo

packages/frameworks/jest.config.js

@@ -0,0 +1,5 @@
+module.exports = {
+  transform: {
+    '^.+\\.tsx?$': 'ts-jest',
+  },
+};