Updated Embedder Guide (markdown)

Embedder-Guide.md

@@ -1 +1 @@
-Check out [NapaRunner](https://github.com/Microsoft/napajs/tree/master/examples/tutorial/napa-runner) as an example.
+Check out [napa-runner](https://github.com/Microsoft/napajs/tree/master/examples/tutorial/napa-runner) as an example.