Update site/content/blog/2020-12-01-whats-new-in-svelte-december-2020.md

site/content/blog/2020-12-01-whats-new-in-svelte-december-2020.md

@@ -11,7 +11,7 @@ It's the last "What's new in Svelte" of the year and there's lots to celebrate!
 
 1. `slot` components now support spread props: `<slot {...foo} />` (**3.30.0**)
 2. A new `hasContext` lifecycle function makes it easy to check whether a `key` has been set in the context of a parent component (**3.30.0**, [Docs](https://svelte.dev/docs#hasContext))
-3. A new Typed `SvelteComponent` makes it easier to add typed classes that extends base Svelte Components. Component library and framework authors rejoice! (**3.30.0**, [RFC](https://github.com/sveltejs/rfcs/pull/37))
+3. A new Typed `SvelteComponent` makes it easier to add typed classes that extends base Svelte Components. Component library and framework authors rejoice! An example: `export class YourComponent extends SvelteComponent<{aProp: boolean}, {click: MouseEvent}, {default: {aSlot: string}}> {}` (**3.30.0**, [RFC](https://github.com/sveltejs/rfcs/pull/37))
 4. Transitions within `{:else}` block should now complete successfully (**3.29.5**, [Example](https://svelte.dev/repl/49cef205e5da459594ef2eafcbd41593?version=3.29.5))
 5. Svelte now includes an export map, which explicitly states which files can be imported from its npm package. This should significantly improve debugging in web dev tools (**3.29.5** with some fixes in **3.29.6**, **3.29.7** and **3.30.0**)
 6. `rollup-plugin-svelte` had a new [7.0.0 release](https://github.com/sveltejs/rollup-plugin-svelte/blob/master/CHANGELOG.md). Biggest change is that the css option was removed. Users who were using that option should add another plugin like `rollup-plugin-css-only` as demonstrated [in the template](https://github.com/sveltejs/template/blob/5b1135c286f7a649daa99825a077586655051649/rollup.config.js#L48)