feat(docs): add xrpl-go GoLang package to XRPLF documentation site

docs/tutorials/go/build-apps/index.md

@@ -0,0 +1,13 @@
+---
+html: build-apps-with-golang.html
+parent: golang.html
+top_nav_grouping: Article Types
+metadata:
+  indexPage: true
+---
+
+# Build Applications with GoLang Library
+
+Build full-featured applications in GoLang.
+
+{% child-pages /%}