docs: fix typo on exif description (#33)

Author: jcesarmobile

README.md

@@ -690,7 +690,7 @@ Allows the user to pick multiple pictures from the photo gallery.
 | **`format`**       | <code>string</code> | The format of the image, ex: jpeg, png, mp4. Android and iOS may return 'jpg' instead of 'jpeg'. The format is the same, just with a different name. Please compare against both 'jpeg' and 'jpg' when checking if the format of the returned media is JPEG. Web supports jpeg, png and gif, but the exact availability may vary depending on the browser. gif is only supported for `chooseFromGallery` on Web. | 8.1.0 |
 | **`resolution`**   | <code>string</code> | The resolution of the media, in `&lt;width&gt;x&lt;height&gt;` format. Example: '1920x1080'.                                                                                                                                                                                                                                                                                                                     | 8.1.0 |
 | **`creationDate`** | <code>string</code> | The date and time the media was created, in ISO 8601 format. If creation date is not available (e.g. Android 7 and below), the last modified date is returned. For Web, the last modified date is always returned.                                                                                                                                                                                               | 8.1.0 |
-| **`exif`**         | <code>string</code> | Exif data, if any, retreived from the media item. Only available for <a href="#mediatype">`MediaType.Photo`</a>. Not available on Web.                                                                                                                                                                                                                                                                           | 8.1.0 |
+| **`exif`**         | <code>string</code> | Exif data, if any, retrieved from the media item. Only available for <a href="#mediatype">`MediaType.Photo`</a>. Not available on Web.                                                                                                                                                                                                                                                                           | 8.1.0 |
 
 
 #### TakePhotoOptions

src/definitions.ts

@@ -504,7 +504,7 @@ export interface MediaMetadata {
   creationDate?: string;
 
   /**
-   * Exif data, if any, retreived from the media item.
+   * Exif data, if any, retrieved from the media item.
    * Only available for `MediaType.Photo`.
    * Not available on Web.
    *