CRC: fix typo

Signed-off-by: Jacinta Ferrant <[email protected]>

Author: jferrant

stacks-common/src/util/vrf.rs

@@ -429,7 +429,7 @@ impl VRF {
     /// * its public key (an ed25519 curve point)
     /// * a new private key derived from the hash of the private key
     /// * a truncated hash of the private key
-    ///   Idea borroed from Algorand (https://github.com/algorand/libsodium/blob/draft-irtf-cfrg-vrf-03/src/libsodium/crypto_vrf/ietfdraft03/prove.c)
+    ///   Idea borrowed from Algorand (https://github.com/algorand/libsodium/blob/draft-irtf-cfrg-vrf-03/src/libsodium/crypto_vrf/ietfdraft03/prove.c)
     fn expand_privkey(secret: &VRFPrivateKey) -> (VRFPublicKey, ed25519_Scalar, [u8; 32]) {
         let mut hasher = Sha512::new();
         let mut h = [0u8; 64];