website: resolve dead links

Author: huiwanpnnl

docs/.vitepress/config.mjs

@@ -29,7 +29,7 @@ export default defineConfig({
           text: "At NERSC",
           items: [
             { text: "Quickstart",          link: "/nersc/index" },
-            { text: "Public Installation", link: "/nersc/installation_at_nersc" },
+            { text: "(not-yet-)Public Installation", link: "/nersc/public_installation" },
             { text: "User's Installation", link: "/nersc/users_installation" },
           ],
         },

docs/nersc/index.md

@@ -8,7 +8,7 @@ The following sections on this page contain instructions for users who would lik
 [[toc]]
 
 User's who would like to understand how our installation was done
-or how to do their own installations are referred to [this page](installation_at_nersc.md).
+or how to do their own installations are referred to [this page](public_installation.md).
 
 ## Quickstart for users familiar with JupyterHub