chore: add gray-matter dependency for markdown frontmatter parsing

public/images/people/mahmoud_emad/mahmoud_emad.md

@@ -2,18 +2,27 @@
 id: mahmoud_emad
 name: Mahmoud Emad
 rank: 3
-memberships: [tech]
-category: [foundation]
-bio: Mahmoud is a young and dynamic Software Engineer who able to work in a multicultural environment with the fast ability to learn and expand knowledge & experience to contribute to the overall success of any organization.
+memberships:
+  - tech
+category:
+  - foundation
+bio: >-
+  Mahmoud is a young and dynamic Software Engineer who able to work in a
+  multicultural environment with the fast ability to learn and expand knowledge
+  & experience to contribute to the overall success of any organization.
 excerpt: Software Engineer
-linkedin: https://www.linkedin.com/in/mahmoud-emad-4aa53717a/
-github: https://github.com/Mahmoud-Emad
-websites: https://threefold.tech
-image: ./mahmoud_emad.png
-projects: [threefold_tech]
-countries: [Egypt]
-cities: [Giza]
+linkedin: 'https://www.linkedin.com/in/mahmoud-emad-4aa53717a/'
+github: 'https://github.com/Mahmoud-Emad'
+websites: 'https://threefold.tech'
+image: ./mahmoud_emad.jpg
+projects:
+  - threefold_tech
+countries:
+  - Egypt
+cities:
+  - Giza
 private: 0
+title: Software Engineer
 ---