fix: pcp and fcp

Author: l-monninger

protocol/README.md

@@ -3,6 +3,6 @@
 
 ## Contents
 - **[`mcr`](./mcr/)**: the `MCR` implementation of `ffs` provided prior to the specification of the `fast-confirmations` and `post-confirmations` protocols. It is maintained for legacy purposes.
-- **[`post-confirmations`](./post-confirmations/)**: the `post-confirmations` sub-protocol implementation for `ffs`. 
-- **[`fast-confirmations`](./fast-confirmations/)**: the `fast-confirmations` sub-protocol implementation for `ffs`.
-- **[`ffs`](./ffs/)**: the full `ffs` protocol implementation.
+- **[`pcp`](./pcp/)**: the Postconfirmations sub-protocol implementation for `ffs`. 
+- **[`fcp`](./fast-confirmations/)**: the fastconfirmations sub-protocol implementation for `ffs`.
+- **[`ffs`](./ffs/)**: the full `ffs` protocol implementation.