chore: adjust types of tests

Author: sean-perkins

docs/react/testing/introduction.md

@@ -16,6 +16,6 @@ Testing is an important part of the development process, and it helps to ensure
 
 There are two types of tests that can be written:
 
-**Unit Tests**: Unit tests are used to test individual functions and components in isolation. They can be written using tools such as [Jest](https://jestjs.io) and [React Testing Library](https://testing-library.com).
+**Unit Tests**: Unit tests are used to test individual functions and components in isolation. [Jest](https://jestjs.io) and [React Testing Library](https://testing-library.com) are commonly used for unit testing.
 
-**Integration Tests**: Integration tests are used to test how different components work together. They can be written using tools such as [Cypress](https://www.cypress.io) or [Playwright](https://playwright.dev).
+**Integration Tests**: Integration tests are used to test how different components work together. [Cypress](https://www.cypress.io) or [Playwright](https://playwright.dev) are commonly used for integration testing.