docs(readme): fix missing link

README.md

@@ -170,6 +170,7 @@ it('loads pages without css requests', async ({ mockedContext }) => {
 });
 ```
 
+[browser-context]: https://playwright.dev/#path=docs%2Fapi.md&q=class-browsercontext
 [browser-opts]: https://playwright.dev/#path=docs%2Fapi.md&q=browsertypelaunchoptions
 [context-opts]: https://playwright.dev/#path=docs%2Fapi.md&q=browsernewcontextoptions
 [multi-page]: https://playwright.dev/#path=docs%2Fmulti-pages.md&q=