add commit urls

Author: nemanjam

docs/working-notes/todo4.md

@@ -172,6 +172,7 @@ vite: {
 -------
 open external md links in new tab by default
 https://cosmicthemes.com/blog/astro-mdx-external-link/
+https://github.com/rehypejs/rehype-external-links
 ```
 
 

src/content/post/2025/04-02-astro-react-gallery/index.mdx

@@ -621,7 +621,7 @@ export const IMAGE_SIZES = {
 The relevant files:
 
 ```bash title=""
-# new gallery
+# new gallery https://github.com/nemanjam/nemanjam.github.io/tree/c1e105847d8e7b4ab4aaffad3078726c37f67528
 git checkout c1e105847d8e7b4ab4aaffad3078726c37f67528
 
 src/pages/gallery.mdx
@@ -635,7 +635,7 @@ src/constants/image.ts
 src/components/react/hooks/useScrollDown.tsx
 src/components/react/hooks/useWidth.tsx
 
-# old gallery
+# old gallery https://github.com/nemanjam/nemanjam.github.io/tree/e0165b295db2ccc72bbbb7be4bdd7eb48f7dedae
 git checkout e0165b295db2ccc72bbbb7be4bdd7eb48f7dedae
 ```