feat(topic): linux file system (#8508)

* Update directory-hierarchy.md

Adding a youtube link about the Linux file system

* Update src/data/roadmaps/linux/content/navigation-basics/directory-hierarchy.md

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Co-authored-by: Arik Chakma <arikchangma@gmail.com>

src/data/roadmaps/linux/content/navigation-basics/directory-hierarchy.md

@@ -14,4 +14,5 @@ In Linux, understanding the directory hierarchy is crucial for efficient navigat
 
 Visit the following resources to learn more:
 
-- [Overview of File System Hierarchy Standard (FHS)](https://access.redhat.com/documentation/ru-ru/red_hat_enterprise_linux/4/html/reference_guide/s1-filesystem-fhs#s3-filesystem-usr).
+- [@article@Overview of File System Hierarchy Standard (FHS)](https://access.redhat.com/documentation/ru-ru/red_hat_enterprise_linux/4/html/reference_guide/s1-filesystem-fhs#s3-filesystem-usr).
+- [@video@The Linux File System explained in 1,233 seconds](https://youtu.be/A3G-3hp88mo?si=sTJTSzubdb0Vizjr)