BIP347: Update README table entry to match

Author: murchandamus

README.mediawiki

@@ -1176,7 +1176,7 @@ users (see also: [https://en.bitcoin.it/wiki/Economic_majority economic majority
 | OP_CAT in Tapscript
 | Ethan Heilman, Armin Sabouri
 | Specification
-| Draft
+| Complete
 |-
 | [[bip-0348.md|348]]
 | Consensus (soft fork)