feat: Add callout about Flame Jam 2025 (#77)

![image](https://github.com/user-attachments/assets/359d9f04-0af9-4b05-ab40-6b2216b12a98)

Author: luanpotter

_includes/callout.html

@@ -0,0 +1,7 @@
+<div class="main-border w-full">
+    <div class="main-border-inner p-4">
+        <p class="text-center">
+            Our <a class="link" href="https://itch.io/jam/flame-jam-2025">Flame Game Jam 2025</a> is happening on 19-28th of April on itch.io! You do not want to miss it!
+        </p>
+    </div>
+</div>

index.html

@@ -6,6 +6,8 @@
 <div class="flex flex-col items-stretch text-white pt-4 md:pt-6 lg:pt-4 space-y-16 md:space-y-24 lg:space-y-32">
   <div class="hero flex flex-col items-center space-y-8 py-16 md:py-18 lg:py-28">
 
+    {% include callout.html %}
+
     <div class="flame-demo h-28 md:h-40"></div>
 
     <p class="font-bold center font-accent text-center text-3xl md:text-4xl lg:text-6xl">

pages/game-jam.html

@@ -1,5 +1,5 @@
 ---
 permalink: /game-jam
 redirect_to:
-  - https://itch.io/jam/flame-jam-3
+  - https://itch.io/jam/flame-jam-2025
 ---

pages/gamejam.html

@@ -1,5 +1,5 @@
 ---
 permalink: /gamejam
 redirect_to:
-  - https://itch.io/jam/flame-jam-3
+  - https://itch.io/jam/flame-jam-2025
 ---