diff --git a/blog/2024-11-21-optimizing-matrix-mul/code/README.md b/blog/2024-11-21-optimizing-matrix-mul/code/README.md
new file mode 100644
index 0000000..c664f91
--- /dev/null
+++ b/blog/2024-11-21-optimizing-matrix-mul/code/README.md
@@ -0,0 +1,19 @@
+The Rust code that accompanies the blog post.
+
+You will find:
+
+1. A binary (`blog`) that you can run with `cargo run`
+2. Benchmarks that you can run with `cargo bench`
+3. GPU shaders/kernels written in Rust
+4. CPU code that takes the shaders and runs it on the GPU (via `wgpu`) or the CPU with a
+   simulated harness
+5. Some tests that you can run with `cargo test`
+
+A good place to start to get the lay of the land is the workspace's `Cargo.toml` in this
+directory.
+
+**Any changes to these files should ensure that the blog post is still correct as it
+uses line numbers to embed code snippets.**
+
+Note: Everything needs to be run with `--release` to work around
+https://github.com/Rust-GPU/rust-gpu/issues/29.
diff --git a/docusaurus.config.ts b/docusaurus.config.ts
index b01583d..b44e0dc 100644
--- a/docusaurus.config.ts
+++ b/docusaurus.config.ts
@@ -54,6 +54,7 @@ const config: Config = {
             xslt: true,
           },
           editUrl: "https://github.com/Rust-GPU/rust-gpu.github.io/tree/main/",
+          exclude: ["*/code/**"],
           onInlineTags: "throw",
           onInlineAuthors: "throw",
           onUntruncatedBlogPosts: "throw",