**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
export interface AxiosTransformer {
  (data: any, headers?: any): any;
}
export interface AxiosAdapter {
  (config: AxiosRequestConfig): AxiosPromise<any>;
}
export interface AxiosBasicCredentials {
  username: string;
  password: string;
}
export interface AxiosProxyConfig {
  host: string;
  port: number;
  auth?: {
    username: string;
    password:string;
  };
  protocol?: string;
}
export type Method =
  | 'get' | 'GET'
  | 'delete' | 'DELETE'
  | 'head' | 'HEAD'
  | 'options' | 'OPTIONS'
  | 'post' | 'POST'
  | 'put' | 'PUT'
  | 'patch' | 'PATCH'
  | 'purge' | 'PURGE'
  | 'link' | 'LINK'
  | 'unlink' | 'UNLINK'
export type ResponseType =
  | 'arraybuffer'
  | 'blob'
  | 'document'
  | 'json'
  | 'text'
  | 'stream'
export interface AxiosRequestConfig {
  url?: string;
  method?: Method;
  baseURL?: string;
  transformRequest?: AxiosTransformer | AxiosTransformer[];
  transformResponse?: AxiosTransformer | AxiosTransformer[];
  headers?: any;
  params?: any;
  paramsSerializer?: (params: any) => string;
  data?: any;
  timeout?: number;
  timeoutErrorMessage?: string;
  withCredentials?: boolean;
  adapter?: AxiosAdapter;
  auth?: AxiosBasicCredentials;
  responseType?: ResponseType;
  xsrfCookieName?: string;
  xsrfHeaderName?: string;
  onUploadProgress?: (progressEvent: any) => void;
  onDownloadProgress?: (progressEvent: any) => void;
  maxContentLength?: number;
  validateStatus?: ((status: number) => boolean) | null;
  maxBodyLength?: number;
  maxRedirects?: number;
  socketPath?: string | null;
  httpAgent?: any;
  httpsAgent?: any;
  proxy?: AxiosProxyConfig | false;
  cancelToken?: CancelToken;
  decompress?: boolean;
}
export interface AxiosResponse<T = any>  {
  data: T;
  status: number;
  statusText: string;
  headers: any;
  config: AxiosRequestConfig;
  request?: any;
}
export interface AxiosError<T = any> extends Error {
  config: AxiosRequestConfig;
  code?: string;
  request?: any;
  response?: AxiosResponse<T>;
  isAxiosError: boolean;
  to