fix: handle the srcset attribute for all tags (#225)

BREAKING CHANGE: handle the `srcset` attribute for all tags

Author: evilebottnawi

README.md

@@ -57,7 +57,7 @@ You may need to specify loaders for images in your configuration (recommended `f
 
 |               Name                |        Type         |                   Default                    | Description                              |
 | :-------------------------------: | :-----------------: | :------------------------------------------: | :--------------------------------------- |
-|  **[`attributes`](#attributes)**  |  `{Array\|String}`  |        `['img:src', 'source:srcset']`        | Enables/Disables attributes handling     |
+|  **[`attributes`](#attributes)**  |  `{Array\|String}`  |           `['img:src', ':srcset']`           | Enables/Disables attributes handling     |
 |        **[`root`](#root)**        |     `{String}`      |                 `undefiend`                  | Allow to handle root-relative attributes |
 | **[`interpolate`](#interpolate)** | `{Boolean\|String}` |                   `false`                    | Allow to use expressions in HTML syntax  |
 |    **[`minimize`](#minimize)**    | `{Boolean\|Object}` | `true` in production mode, otherwise `false` | Tell `html-loader` to minimize HTML      |
@@ -66,7 +66,7 @@ You may need to specify loaders for images in your configuration (recommended `f
 ### `attributes`
 
 Type: `Array|String`
-Default: `['img:src', 'source:srcset']`
+Default: `['img:src', ':srcset']`
 
 You can specify which tag-attribute combination should be processed by this loader via the query parameter `attributes`.
 Pass an array or a space-separated list of `<tag>:<attribute>` combinations. (Default: `attributes=img:src`)