Update with suggestions

Author: kristianfreeman

src/content/docs/workers/tutorials/build-a-qr-code-generator/index.mdx

@@ -142,7 +142,7 @@ async function generateQRCode(request) {
 
 ## 4. Test in an application UI
 
-The Worker will work if a user sends a `POST` request to a route, but it would be best practice to also be able to test the function with a proper interface. At this point in the tutorial, if any request is received by your function that is not a `POST`, a `405` response is returned. The new version of `fetch` should return a new `Response` with a static HTML document instead of the `405` error:
+The Worker will execute when a user sends a `POST` request to a route, but it is best practice to also provide a proper interface for testing the function. At this point in the tutorial, if any request is received by your function that is not a `POST`, a `405` response is returned. The new version of `fetch` should return a new `Response` with a static HTML document instead of the `405` error:
 
 ```js null {23-54}
 export default {
@@ -258,6 +258,6 @@ npx wrangler deploy
 
 ## Related resources
 
-In this tutorial, you built and deployed a Worker application for generating QR codes. If you would like to see the full source code for this application, you can find it [on GitHub](https://github.com/cloudflare/workers-sdk/tree/main/templates/examples/qr-code-generator).
+In this tutorial, you built and deployed a Worker application for generating QR codes. If you would like to see the full source code for this application, you can find it [on GitHub](https://github.com/kristianfreeman/workers-qr-code-generator).
 
 If you want to get started building your own projects, review the existing list of [Quickstart templates](/workers/get-started/quickstarts/).