chore: add gray-matter dependency for markdown frontmatter parsing

public/images/people/omar_abdulaziz/omar_abdulaziz.md

@@ -2,17 +2,24 @@
 id: omar_abdulaziz
 name: Omar Abdulaziz
 rank: 3
-memberships: [tech]
-category: [foundation]
+memberships:
+  - tech
+category:
+  - foundation
 bio: A software engineer.
-excerpt: Golang, Typescript.
-linkedin: https://www.linkedin.com/in/omarabdul3ziz
-github: https://github.com/omarabdul3ziz
-telegram: https://t.me/Omarabdul3ziz
-websites: https://threefold.tech
+excerpt: 'Golang, Typescript.'
+linkedin: 'https://www.linkedin.com/in/omarabdul3ziz'
+github: 'https://github.com/omarabdul3ziz'
+telegram: 'https://t.me/Omarabdul3ziz'
+websites: 'https://threefold.tech'
 image: ./omar_abdulaziz.jpg
-projects: [threefold_tech]
-countries: [Egypt]
-cities: [Cairo]
+projects:
+  - threefold_tech
+countries:
+  - Egypt
+cities:
+  - Cairo
 private: 0
+title: 'Golang, Typescript'
 ---
+