fixed README example usage

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Changelog
 
-## [v0.3.0] - WIP
+## [v0.3.0] - 2025-05-03
 - updated CeTZ to 0.3.4
 - updated to Typst 0.13.1
 - updated Tidy to 0.4.2

README.md

@@ -35,7 +35,7 @@ For more information, see the [manual](manual.pdf)
 
 To use this package, simply import `schema` from [rivet](https://typst.app/universe/package/rivet) and call `schema.load` to parse a schema description. Then use `schema.render` to render it, et voilà !
 ```typ
-#import "@preview/rivet:0.2.0": schema
-#let doc = schema.load("path/to/schema.yaml")
+#import "@preview/rivet:0.3.0": schema
+#let doc = schema.load(yaml("path/to/schema.yaml"))
 #schema.render(doc)
 ```