chore(docs): set bundle url in example using loadAsync

Author: jspanchu

README.md

@@ -16,8 +16,8 @@ Load the runtime, create a session, and use its `vtk` namespace:
 
 ```js
 import { loadAsync } from "@kitware/vtk-wasm";
-
-const runtime = await loadAsync({ url: VTK_WASM_BUNDLE_URL });
+const BUNDLE = "https://raw.githack.com/Kitware/vtk-wasm/dist/latest/vtk-wasm32-emscripten.tar.gz";
+const runtime = await loadAsync({url: BUNDLE });
 const session = runtime.createStandaloneSession();
 const vtk = session.vtk;
 

docs/guide/js/standalone-session.md

@@ -7,7 +7,8 @@ Create one from a [runtime](./loading.md):
 ```js
 import { loadAsync } from "@kitware/vtk-wasm";
 
-const runtime = await loadAsync({ url: VTK_WASM_BUNDLE_URL });
+const BUNDLE = "https://raw.githack.com/Kitware/vtk-wasm/dist/latest/vtk-wasm32-emscripten.tar.gz";
+const runtime = await loadAsync({url: BUNDLE });
 const session = runtime.createStandaloneSession();
 
 const vtk = session.vtk; // the namespace