moved the files around added demo examples and fixed a bunch of stuff!

lua/plugins/demo/demo_route.lua

@@ -0,0 +1,4 @@
+add_route("/lua/test", function (req)
+    log("demo_route handling request for =>" .. (req.path or "unknown"))
+    return 200, {["Content-Type"] = "text/html"}, "<h1>Hello!</h1>"
+end)

lua/plugins/demo/hello.lua

@@ -1,6 +0,0 @@
--- hello.lua
-add_route("/lua/hello", function(req)
-  log("hello.lua handling request for " .. (req.path or "unknown"))
-  -- return (status, headers_table, body_string)
-  return 200, {["Content-Type"] = "text/html"}, "<h1>Hello from Lua plugin!</h1>"
-end)