Refactor initial slides

slides.md

@@ -42,22 +42,41 @@ Test runners can be part of a larger **test framework** or standalone tools.
 
 # Poplular examples
 
-Popular examples include `pytest` for Python, `JUnit` for Java, `Mocha` for JavaScript, and `NUnit` for .NET.
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+- Test runners are tools designed to execute your test suites and report the results. They are essential in automating the testing process.
+- Python: `pytest` is widely appreciated for its powerful features and simple syntax, making it suitable for both simple and complex projects.
+- Java: `JUnit` is the de facto standard for unit testing in Java development, known for its rich annotation-based configuration.
+- JavaScript: `Mocha` is a flexible test framework with a focus on asynchronous testing, offering rich features for running tests in Node.js and the browser.
+- .NET: `NUnit` is a popular choice for .NET developers, similar to JUnit but with a focus on the .NET framework.
+</div>
 
-Choosing the right test runner depends on the programming language, the complexity of the project, and specific project requirements.
+Choosing the right test runner involves considering the programming language, project complexity, and specific requirements.
 
 ---
 
 # Test runner VS Testing Framework
 
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-# Why are there so many test runners?
+- Test Runner: A tool that executes tests and reports the results. It is responsible for loading your test code, running it, and then providing feedback.
+- Testing Framework: Provides the structure and guidelines for writing tests. It includes assertions, test cases, and test suites, but doesn't run tests by itself.
+- The main difference lies in their roles; while a testing framework defines how to write tests, a test runner actually executes them.
+- Some tools, like `pytest` and `Mocha`, combine both functionalities, acting as both test runners and frameworks.
+</div>
 
 ---
 
 # Why Node.js decided to ship its own test runner?
 
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+- Integration: Built-in support for testing within the Node.js ecosystem simplifies setup and configuration for developers.
+- Standardization: Aims to provide a standard testing solution that leverages Node.js features and best practices.
+- Performance: Optimized for the Node.js environment, it can offer better performance and efficiency for JavaScript projects.
+- Features: Tailored to meet the specific needs of Node.js developers, incorporating feedback and evolving with the platform.
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+
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 # A brief introduction