chore(ci): add changelog for ES decorators

.changeset/forty-experts-retire.md

@@ -0,0 +1,24 @@
+---
+'@freshgum/typedi': minor
+---
+
+**We now support ES decorators**! Grab the new ESService decorator from contrib/es!
+
+To use this, you'll need to disable `experimentalDecorators` in your TypeScript
+configuration file.  Note that, by doing this, you won't be able to utilise the
+legacy decorators included in the package (`Service`).
+
+Here's an example:
+
+```ts
+import { ESService } from '@freshgum/typedi/contrib/es';
+
+@ESService([ ])
+export class MyService { }
+```
+
+Note that the **legacy decorators have not been removed** for backwards-compatibility
+reasons: you're still able to use them just as before.
+
+Many thanks to Axel Rauschmayer for providing
+[a very detailed guide re: ES decorators](https://2ality.com/2022/10/javascript-decorators.html).