fix deprecated usage of panic (#8134)

substrate/primitives/core/src/crypto.rs

@@ -224,7 +224,7 @@ pub enum PublicError {
 
 /// Key that can be encoded to/from SS58.
 ///
-/// See https://github.com/paritytech/substrate/wiki/External-Address-Format-(SS58)#address-type
+/// See <https://github.com/paritytech/substrate/wiki/External-Address-Format-(SS58)#address-type>
 /// for information on the codec.
 #[cfg(feature = "full_crypto")]
 pub trait Ss58Codec: Sized + AsMut<[u8]> + AsRef<[u8]> + Default {

substrate/primitives/core/src/hashing.rs

@@ -18,7 +18,7 @@
 //! Hashing functions.
 //!
 //! This module is gated by `full-crypto` feature. If you intend to use any of the functions
-//! defined here within your runtime, you should most likely rather use [sp_io::hashing] instead,
+//! defined here within your runtime, you should most likely rather use `sp_io::hashing` instead,
 //! unless you know what you're doing. Using `sp_io` will be more performant, since instead of
 //! computing the hash in WASM it delegates that computation to the host client.