Change text for the deadline extension (#397)

* Change text for the deadline extension

* another update

content/advent-of-haystack/_index.md

@@ -13,9 +13,9 @@ hero:
 
     with 10 challenges in the month of December 🎉
 
-    Complete and submit all challenges by _**December 31**_ for a chance to win gift cards, swag, and more! 🎁 Learn more in [Advent of Haystack](https://haystack.deepset.ai/blog/announcing-advent-2024/)
+    DEADLINE IS EXTENDED! Complete and submit all challenges by _**January 6**_ for a chance to win gift cards, swag, and more! 🎁 
     
-    ✨🎄 **Plus: Share Your Haystack Story This Holiday Season!** 🎄✨
+    Learn more in [Announcing Advent of Haystack 2024](https://haystack.deepset.ai/blog/announcing-advent-2024/) 
     
-    Spread the cheer and get perks by sharing your journey with Haystack. [See How](https://forms.gle/UMtRDKMq9tVCMuds5).
+    🔔 Solutions will be available on the challenge pages on January 6 🔔
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