Add proposal discussion item (#568)

numerical values in data segments proposal

2020/CG-06-09.md

@@ -27,6 +27,7 @@ Installation is required, see the calendar invite.
     1. Review of action items from prior meeting.
     1. Update on Module Types / Module Linking proposal ([slides](https://docs.google.com/presentation/d/1Cz4yopK-V6PIq7JMJiRNUWlDlHLTnIvwhdetP5QBVL4))
        1. Poll: Rename "Module Types" to "Module Linking", broadening scope as proposed in [PR #3](https://github.com/WebAssembly/module-types/pull/3) and advance proposal to stage 1
+    1. Discuss numerical values in data segments proposal. ([discussion link](https://github.com/WebAssembly/design/issues/1348) and [semi-formal description repo](https://github.com/echamudi/numeric-values-in-data-segments-wasm-proposal))
 1. Closure
 
 ## Agenda items for future meetings