typo

Author: jaredpalmer

README.md

@@ -191,7 +191,7 @@ the client and the server:
 ### Injected Page Props
 
 * Whatever you have returned in `getInitialProps`
-* `prefetch: (pathname: string) => void` - Impertively prefetch _and cache_ data for a path. Under the hood this will map through your route tree, call the matching route's `getInitialProps`, store it, and then provide it to your page component. If the user ultimately navigates to that path, the data and component will be ready ahead of time. In the future, there may be more options to control cache behavior in the form of a function or time in milliseconds to keep that data around.
+* `prefetch: (pathname: string) => void` - Imperatively prefetch _and cache_ data for a path. Under the hood this will map through your route tree, call the matching route's `getInitialProps`, store it, and then provide it to your page component. If the user ultimately navigates to that path, the data and component will be ready ahead of time. In the future, there may be more options to control cache behavior in the form of a function or time in milliseconds to keep that data around.
 * `refetch: (nextCtx?: any) => void` - Imperatively call `getInitialProps` again
 
 ## Routing