Update proposals.md (#7915)

Author: andruud

css-nesting-1/proposals.md

@@ -149,6 +149,7 @@ If it were up to you, what syntax would you prefer for CSS Nesting?
 | alohci      | 3          | 1          | 4          |
 | svgeesus    | 3          | 2.iii      |            |
 | lilles      | 1          | 3          |            |
+| andruud     | 3          | 1          | 4          |
 
 ***Note:** It is not required to be a WG member to add your name to this list,
 only to have followed the [discussion](https://github.com/w3c/csswg-drafts/issues/7834)