Add blog mi300kernels (#2936)

* Added org and guest

* Update mi300kernels.md

Co-authored-by: Ella Charlaix <80481427+echarlaix@users.noreply.github.com>

* Update mi300kernels.md

Co-authored-by: Ella Charlaix <80481427+echarlaix@users.noreply.github.com>

* Review compliance

---------

Co-authored-by: Ella Charlaix <80481427+echarlaix@users.noreply.github.com>

Author: remi-or

_blog.yml

@@ -6292,3 +6292,14 @@
     - robotics
     - community
     - open-source
+
+- local: mi300kernels
+  title: "Creating custom kernels for the AMD MI300" 
+  author: ror
+  thumbnail: /blog/assets/mi300kernels/thumbnail.png
+  date: Jul 4, 2025
+  tags:
+    - kernels
+    - cuda
+    - amd
+    - optimization