Change 250px to min(250px, 100%)

For some reason "edit and fork" didn't save my inital edit which did this on my fork, thanks github.

Author: tryoxiss

snippets/css/layouts/grid-layout.md

@@ -9,7 +9,7 @@ tags: layout,grid
 ```css
 .grid-container {
   display: grid
-  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+  grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
 /* Explanation:
 - `auto-fit`: Automatically fits as many columns as possible within the container.
 - `minmax(250px, 1fr)`: Defines a minimum column size of 250px and a maximum size of 1fr (fraction of available space).