linking public html to react learn installation

Author: joseeloren

src/content/learn/installation.md

@@ -41,7 +41,7 @@ Most pages in the React documentation contain sandboxes like this. Outside of th
 
 ### Try React locally {/*try-react-locally*/}
 
-To try React locally on your computer, [download this HTML page.](https://gist.githubusercontent.com/gaearon/0275b1e1518599bbeafcde4722e79ed1/raw/db72dcbf3384ee1708c4a07d3be79860db04bff0/example.html) Open it in your editor and in your browser!
+To try React locally on your computer, [download this HTML page.](../html/single-file-example.html) Open it in your editor and in your browser!
 
 ## Start a new React project {/*start-a-new-react-project*/}