shorter description

Author: oliviertassinari

docs/pages/api/avatar.md

@@ -31,7 +31,7 @@ You can learn more about the difference by [reading this guide](/guides/minimizi
 | <span class="prop-name">imgProps</span> | <span class="prop-type">object</span> |  | Attributes applied to the `img` element if the component is used to display an image. |
 | <span class="prop-name">sizes</span> | <span class="prop-type">string</span> |  | The `sizes` attribute for the `img` element. |
 | <span class="prop-name">src</span> | <span class="prop-type">string</span> |  | The `src` attribute for the `img` element. |
-| <span class="prop-name">srcSet</span> | <span class="prop-type">string</span> |  | The `srcSet` attribute for the `img` element. |
+| <span class="prop-name">srcSet</span> | <span class="prop-type">string</span> |  | The `srcSet` attribute for the `img` element. Use this attribute for responsive image display. |
 | <span class="prop-name">variant</span> | <span class="prop-type">'circle'<br>&#124;&nbsp;'rounded'<br>&#124;&nbsp;'square'</span> | <span class="prop-default">'circle'</span> | The shape of the avatar. |
 
 The `ref` is forwarded to the root element.

packages/material-ui/src/Avatar/Avatar.js

@@ -137,7 +137,8 @@ Avatar.propTypes = {
    */
   src: PropTypes.string,
   /**
-   * The `srcSet` attribute for the `img` element. Defines the set of images we will allow the browser to choose between by match size.
+   * The `srcSet` attribute for the `img` element.
+   * Use this attribute for responsive image display.
    */
   srcSet: PropTypes.string,
   /**