Update phase-3-bootstrap-prompt.md

Added real life usage of frameworks

projects/recipe-page/phase-3-bootstrap-prompt.md

@@ -158,3 +158,11 @@ Let's clean up the navbar a little bit. You can remove things like the search ba
 ### Extensions
 
 Find some other Bootstrap components you can add to your webpage!
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+### Real life usage of frameworks
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+- Writing custom CSS from scratch can be time-consuming, but frameworks simplify the process by providing pre-built styles and components, allowing one to quickly implement a beautiful and consistent design
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+- When working on a large project using frameworks makes the code cleaner and more maintainable
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+- Frameworks are used to create consistent design and styling across the whole project