Update README.md

Add links for April 18 and May 2 meetings

Author: rcthomas

meetings/README.md

@@ -17,6 +17,8 @@ What this meeting is about:
 
 ## Meeting Minutes
 
+* [2023-05-02](2023-05-02.md)
+* [2023-04-18](2023-04-18.md)
 * [2023-04-04](2023-04-04.md)
 * [2023-03-21](2023-03-21.md)
 * [2023-03-07](2023-03-07.md)