chore: Add changeset for #3306

.changeset/odd-taxis-tease.md

@@ -0,0 +1,13 @@
+---
+'@urql/exchange-graphcache': minor
+---
+
+Implement **local directives**. It’s now possible to add client-only directives to queries by adding them to the `cacheExchange`’s new `directives` option.
+Directives accept an object of their arguments and return a resolver. When a field is annotated with
+a resolver, e.g. `@_optional` or `@_required`, their resolvers from the `directives` config are
+executed. This means it’s now possible to use `@_relayPagination` for example, by passing adding
+the `relayPagination` helper to the config.
+Due to the change in [#3317](https://github.com/urql-graphql/urql/pull/3317), any directive in
+queries that’s prefixed with an underscore (`_`) is only visible to Graphcache and not the API.
+
+See: https://github.com/urql-graphql/urql/pull/3306