feat: add banners

Author: PSDat123

_posts/2023-07-11-Cookie Arena CTF Season 2.md

@@ -5,6 +5,7 @@ tags: [ctf, web, crypto, steganography, mobile, forensics, programming, reversin
 categories: [CTF Writeups]
 author: Dat2Phit
 math: true
+image: /assets/img/Cookie Arena SS2/cookie.webp
 ---
 
 Writeup cho cookie arena CTF season, sau 2 ngày chiến đấu khóc liệt thì mình đã đạt được giải 3 🎉. Còn 2 bài web mình chưa giải kịp vì lúc đó mình quá là đuối rồi (┬┬﹏┬┬)

_posts/2024-02-19-LA-CTF-2024.md

@@ -5,6 +5,7 @@ tags: [ctf, web]
 categories: [CTF Writeups]
 author: Dat2Phit
 img_path: /assets/img/LA-CTF-2024
+image: lactf-banner.gif
 ---
 
 A little warmup after Lunar New Year. Here is my writeup for the web challenges that I solved in [LA CTF 2024](https://ctftime.org/event/2102)