set advancement date for stage 3

rfcs/text/0001-wildcard-data-type.md

@@ -2,7 +2,7 @@
 <!--^ The ECS team will assign a unique, contiguous RFC number upon merging the initial stage of this RFC, taking care not to conflict with other RFCs.-->
 
 - Stage: **3 (candidate)** <!-- Update to reflect target stage -->
-- Date: **2020-10-02** <!-- Update to reflect date of most recent stage advancement -->
+- Date: **2020-11-10** <!-- Update to reflect date of most recent stage advancement -->
 
 Wildcard is a data type for Elasticsearch string fields being introduced in Elasticsearch 7.9. Wildcard optimizes performance for queries using wildcards (`*`) and regex, allowing users to perform `grep`-like searches without the limitations of the existing
 text[0] and keyword[1] types.