Correct typo on 404 page

Signed-off-by: Evan Lezar <elezar@nvidia.com>

Author: elezar

404.md

@@ -28,7 +28,7 @@ Most distributions that use DEB packages. These include:
 * `https://nvidia.github.io/libnvidia-container/stable/deb`
 * `https://nvidia.github.io/libnvidia-container/experimental/deb`
 
-## Generic .rpm pakcage repository
+## Generic .rpm package repository
 
 ### Compatible with