Add agenda item for WASI-07-27 meeting (#1327)

Author: loganek

wasi/2023/WASI-07-27.md

@@ -28,4 +28,4 @@ The meeting will be on a zoom.us video conference.
     1. _Submit a PR to add your announcement here_
 1. Proposals and discussions
     1. Dan Gohman: Preview 2 definition plan
-    1. _Submit a PR to add your announcement here_
+    1. Marcin Kolny: The future of WASI threads proposal (https://github.com/WebAssembly/wasi-threads/issues/48)