Add link to fastboot-gcloud-storage-downloader in README

Author: YoranBrondsema

README.md

@@ -162,7 +162,8 @@ server.start();
 
 ### Available Downloaders
 
-* fastboot-s3-downloader
+* [fastboot-s3-downloader](https://github.com/ember-fastboot/fastboot-s3-downloader)
+* [fastboot-gcloud-storage-downloader](https://github.com/EmberSherpa/fastboot-gcloud-storage-downloader)
 
 ### Writing a Downloader
 
@@ -242,4 +243,4 @@ let server = new FastBootAppServer({
 
 ### Twitter and LinkedIn
 
-As of 2019-06-06, Twitter and LinkedIn's scrapers have a hard time extracting your site's metadata for sharing if `chunkedResponse` is set to `true` in your `server.js` file. Set `chunkedResponse: false` if your meta tags are in place but the [Twitter card validator](https://cards-dev.twitter.com/validator) shows "Card not found" or [LinkedIn's Post Inspector](https://www.linkedin.com/post-inspector/) shows a 500 error.
+As of 2019-06-06, Twitter and LinkedIn's scrapers have a hard time extracting your site's metadata for sharing if `chunkedResponse` is set to `true` in your `server.js` file. Set `chunkedResponse: false` if your meta tags are in place but the [Twitter card validator](https://cards-dev.twitter.com/validator) shows "Card not found" or [LinkedIn's Post Inspector](https://www.linkedin.com/post-inspector/) shows a 500 error.