CIP-0058 | Add supersession note (#831)

* Add supersession note

* Typo

Co-authored-by: Robert Phair <[email protected]>

---------

Co-authored-by: Robert Phair <[email protected]>

Author: kozross

CIP-0058/README.md

@@ -7,7 +7,7 @@ Authors:
     - Maximilian König <[email protected]>
 Implementors:
     - Las Safin <[email protected]>
-Status: Proposed
+Status: Inactive (superseded by CIP-0121 and CIP-0122)
 Discussions:
     - https://github.com/cardano-foundation/CIPs/pull/283
     - https://github.com/input-output-hk/plutus/issues/4252