Re-level non-docs content to top of repo and rename content→docs

docs/tutorials/http-websocket-apis/index.md

@@ -0,0 +1,13 @@
+---
+html: http-websocket-apis-tutorials.html
+parent: tutorials.html
+top_nav_grouping: Article Types
+metadata:
+  indexPage: true
+---
+# HTTP / Websocket APIs
+
+XRPL tutorials for HTTP / Websocket APIs.
+
+
+{% child-pages /%}