Fix wrong icon names (mui#12042)

docs/src/pages/style/icons/icons.md

@@ -45,10 +45,10 @@ When importing an icon, keep in mind that the names of the icons are `PascalCase
 - [`delete forever`](https://material.io/tools/icons/?icon=delete_forever&style=baseline) is exposed as `@material-ui/icons/DeleteForever`
 
 For *"themed"* icons, append the theme name to the icon name. For instance with the
-- The Outlined [`delete`](https://material.io/tools/icons/?icon=delete&style=outline) icon is exposed as `@material-ui/icons/BuildOutlined`
-- The Rounded [`delete`](https://material.io/tools/icons/?icon=delete&style=rounded) icon is exposed as `@material-ui/icons/BuildRounded`
-- The Two Tone [`delete`](https://material.io/tools/icons/?icon=delete&style=twotone) icon is exposed as `@material-ui/icons/BuildTwoTone`
-- The Sharp [`delete`](https://material.io/tools/icons/?icon=delete&style=sharp) icon is exposed as `@material-ui/icons/BuildSharp`
+- The Outlined [`delete`](https://material.io/tools/icons/?icon=delete&style=outline) icon is exposed as `@material-ui/icons/DeleteOutlined`
+- The Rounded [`delete`](https://material.io/tools/icons/?icon=delete&style=rounded) icon is exposed as `@material-ui/icons/DeleteRounded`
+- The Two Tone [`delete`](https://material.io/tools/icons/?icon=delete&style=twotone) icon is exposed as `@material-ui/icons/DeleteTwoTone`
+- The Sharp [`delete`](https://material.io/tools/icons/?icon=delete&style=sharp) icon is exposed as `@material-ui/icons/DeleteSharp`
 
 There are three exceptions to this rule:
 - [`3d_rotation`](https://material.io/tools/icons/?icon=3d_rotation&style=baseline) is exposed as `@material-ui/icons/ThreeDRotation`