Fix readme for BIP-197 to match title

Author: matthewjablack

README.mediawiki

@@ -829,7 +829,7 @@ Those proposing changes should consider that ultimately consent may rest with th
 |-
 | [[bip-0197.mediawiki|197]]
 | Applications
-| Hashed Time-Locked Collateral Contract transactions
+| Hashed Time-Locked Collateral Contract
 | Matthew Black, Tony Cai
 | Standard
 | Draft