Update Readme.md: add badges

Author: orestbida

README.md

@@ -1,5 +1,9 @@
 # link-prefetcher
 
+![GitHub](https://img.shields.io/github/license/orestbida/link-prefetcher?label=License)
+![GitHub file size in bytes](https://img.shields.io/github/size/orestbida/link-prefetcher/dist/index.esm.js?label=Size)
+[![Build](https://github.com/orestbida/link-prefetcher/actions/workflows/build.yml/badge.svg)](https://github.com/orestbida/link-prefetcher/actions/workflows/build.yml)
+
 A tiny link prefetcher (yet another one in the sea of prefetching tools). Uses `fetch`/`xhr` to prefetch links rather than the `link` tag.
 
 ### `prefetchHover()`
@@ -33,4 +37,4 @@ or
 ```
 
 ## License
-Distributed under the MIT License. See [LICENSE](./LICENSE) for more information.
+Distributed under the MIT License. See [LICENSE](./LICENSE) for more information.