Add js web stuff to landing page + documentation

go/jsruntime/runtime/@solidjs/router/dist/routers/index.js

@@ -0,0 +1,6 @@
+export { Route } from "./components.js";
+export { createRouter } from "./createRouter.js";
+export { Router } from "./Router.js";
+export { HashRouter } from "./HashRouter.js";
+export { MemoryRouter, createMemoryHistory } from "./MemoryRouter.js";
+export { StaticRouter } from "./StaticRouter.js";