Home: add Links card and resources page; reorder cards

Add a Links page (books, tutorials, articles, papers, tools, and
community resources) ported from the old iolanguage.org links page into
the colvmn two-column section layout. Add a Links card to the root and
reorder cards to Documentation, FAQ, Links, Timeline, GitHub.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: stevedekorte

FAQ/index.html

@@ -23,12 +23,17 @@
           "subtitle": "Guides, tutorial, language reference, and design notes."
         },
         "FAQ",
+        {
+          "title": "Links",
+          "href": "Links/index.html",
+          "subtitle": "Books, tutorials, articles, papers, tools, and community resources."
+        },
+        "Timeline",
         {
           "title": "GitHub Repository",
           "href": "https://github.com/IoLanguage/io",
           "subtitle": "Source code, issues, and contributions."
-        },
-        "Timeline"
+        }
       ]
     },
     {