Update README.md

Author: ghengeveld

examples/with-abortcontroller/README.md

@@ -1,5 +1,5 @@
-[![Deploy to now](https://deploy.now.sh/static/button.svg)](https://deploy.now.sh/?repo=https://github.com/ghengeveld/react-async/tree/master/examples/basic-fetch)
+[![Deploy to now](https://deploy.now.sh/static/button.svg)](https://deploy.now.sh/?repo=https://github.com/ghengeveld/react-async/tree/master/examples/with-abortcontroller)
 
-# Basic fetch with React Async
+# Abortable fetch with React Async
 
-This demonstrates a very simple HTTP GET using `fetch`, wrapped with React Async.
+This demonstrates a very simple HTTP GET using `fetch`, which gets the AbortSignal passed in to actually abort the HTTP request when the promise is canceled.