Add explicit excerpt to blog post (#1826)

Signed-off-by: Chris Abraham <[email protected]>

Author: cjyabraham

_posts/2024-12-02-hadacore.md

@@ -2,6 +2,7 @@
 layout: blog_detail
 title: "HadaCore: Tensor Core Accelerated Hadamard Transform Kernel"
 author: "IBM and Meta"
+excerpt: "Quantization is a method for improving model inference speeds by compressing model weights and performing (faster) computation in lower precision data types. However, quantization can result in accuracy loss due to the presence of outliers."
 ---
 
 **IBM**: Krish Agarwal, Rishi Astra, Adnan Hoque, Mudhakar Srivatsa, Raghu Ganti