Remove truncate marker in readme

LegNeato · LegNeato · commit 9e9d8644bded · 2024-11-20T18:29:10.000-04:00
As the blog plugin is no longer parsing this, it no longer throws
without it
diff --git a/blog/2024-11-21-optimizing-matrix-mul/code/README.md b/blog/2024-11-21-optimizing-matrix-mul/code/README.md
@@ -1,7 +1,5 @@
 The Rust code that accompanies the blog post.
 
-<!-- truncate -->
-
 You will find:
 
 1. A binary (`blog`) that you can run with `cargo run`
