Update introduction.md formatting text

Author: loredanalepera

docs/chapters/introduction.md

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     A Learning Path is a structured pathway that guides learners through a curated and ordered selection of training modules —such as courses or training materials— progressively moving from foundational to advanced cognitive skills. By the end of the pathway, learners acquire the targeted knowledge and skills in a specific subject area.
 
 
-Learning Paths are **highly beneficial** as they not only break complex learning content into manageable units but also ensure that the material is absorbed progressively. This approach guarantees that learners meet the necessary prerequisites at each stage, enabling them to tackle subsequent content with confidence and a solid foundation.
+Learning Paths are **highly beneficial** as they not only **break complex learning content into manageable units** but also ensure that the **material is absorbed progressively**. This approach guarantees that learners meet the necessary prerequisites at each stage, enabling them to tackle subsequent content with confidence and a solid foundation.
 
 This six-step protocol is designed for **training providers, curriculum developers, and educators** seeking a straightforward and adaptable framework for building Learning Paths across various contexts.