Add open graph image for gamification article

content/en/post/gamification-of-a-advanced-linux-sysadmin-course/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Gamification of a Linux system administration course"
 date: !!timestamp '2023-06-07 16:07:00'
+image: /post/gamification-of-a-advanced-linux-sysadmin-course/og.webp
 tags:
 - teaching
 - kernel
@@ -39,7 +40,7 @@ In computer engineering schools, the Matrix movie is a sacred bible.
 Every student knows the story and at least a little about the universe.
 
 Over the course of a few hours, students will embody one of their favorite heroes, in his universe, with the ultimate goal of : "connect to the Internet to reach Zion".
-In Matrix Revolution, Neo must reach Zion to save her.
+In *Matrix Revolution*, Neo must reach Zion to save her.
 
 From the very first minutes of the exercise, the environment is set up:
 

content/fr/post/gamification-of-a-advanced-linux-sysadmin-course/index.md

@@ -1,6 +1,7 @@
 ---
 title: "Concevoir un cours ludique d'administration système Linux"
 date: !!timestamp '2023-06-07 16:07:00'
+image: /fr/post/gamification-of-a-advanced-linux-sysadmin-course/og.webp
 tags:
 - teaching
 - kernel