Update README.md

Author: TomHAnderson

README.md

@@ -60,9 +60,9 @@ Route::name('api.resource::fetch')
     ->middleware('auth.apikey');
 ```
 
-Begin making requests to your ApiKey protected resource using your key as a Bearer token in the Authorization header
+Begin making requests to your ApiKey protected resource using your apikey as a Bearer token in the Authorization header
 ```sh
-Authorization: Bearer {key}
+Authorization: Bearer {apikey}
 ```