**Is your feature request related to a problem? Please describe.**
When you copy'n'paste examples from the README into you code, you can't easily auto-import (e.g. in VS Code) the Axios lib.

**Describe the solution you'd like**
I'll rename the default export in the `index.d.ts` so it alignes with the official documentation.

Change this:
![image](https://user-images.githubusercontent.com/1152805/84486479-c0a36c80-ac9d-11ea-9df5-90b99935d9bd.png)

![image](https://user-images.githubusercontent.com/1152805/84486510-cd27c500-ac9d-11ea-807f-7014dd92b8b8.png)

To this:
![image](https://user-images.githubusercontent.com/1152805/84486602-eb8dc080-ac9d-11ea-905f-c1b88ce3e5ef.png)

![image](https://user-images.githubusercontent.com/1152805/84486569-dfa1fe80-ac9d-11ea-96b2-dc2737fbff98.png)

**Describe alternatives you've considered**
Change all the official examples to use `Axios` instead of `axios` ;)

**Additional context**
Nothing.
index.d.ts
el: CancelStatic;
  CancelToken: CancelTokenStatic;
  isCancel(value: any): boolean;
  all<T>(values: (T | Promise<T>)[]): Promise<T[]>;
  spread<T, R>(callback: (...args: T[]) => R): (array: T[]) => R;
}
declare const Axios: AxiosStatic;
export default Axios;
