fix a typo (#2837)

docs/emotion-11.mdx

@@ -69,7 +69,7 @@ For the classic runtime this has been implemented using technique described [her
 
 For the automatic runtime this has been implemented by exporting `JSX` namespace from the appropriate entries but this is only supported in **TypeScript 4.1 or higher**.
 
-However, if you are stuck with older version of TypeScript or using the classic runtime implicitly by using our `@emotion/babel-preset-css-prop` then it's not possible to leverage leverage `css` prop support being added conditionally based on a type of rendered component. For those cases we have added a special file that can be imported once to add support for the `css` prop globally, for all components. Use it like this:
+However, if you are stuck with older version of TypeScript or using the classic runtime implicitly by using our `@emotion/babel-preset-css-prop` then it's not possible to leverage `css` prop support being added conditionally based on a type of rendered component. For those cases we have added a special file that can be imported once to add support for the `css` prop globally, for all components. Use it like this:
 
 ```ts
 /// <reference types="@emotion/react/types/css-prop" />