add link to Mobx example

Author: bahmutov

README.md

@@ -185,6 +185,7 @@ Repo | Description
 [test-custom-error-boundary](https://github.com/bahmutov/test-custom-error-boundary) | Play with a component that implements error boundary
 [Jscrambler-Webpack-React](https://github.com/bahmutov/Jscrambler-Webpack-React) | Example project with its own Webpack config file
 [bahmutov/integration-tests](https://github.com/bahmutov/integration-tests) | Example based on blog post [React Integration Testing: Greater Coverage, Fewer Tests](https://css-tricks.com/react-integration-testing-greater-coverage-fewer-tests/)
+[mobx-react-typescript-boilerplate](https://github.com/bahmutov/mobx-react-typescript-boilerplate) | Fork of the official Mobx example, shows clock control
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 To find more examples, see GitHub topic [cypress-react-unit-test-example](https://github.com/topics/cypress-react-unit-test-example)