hkd32, secrecy: Fix branch name in repository URL

The repository URLs in the Cargo.toml files for both the hkd32 and the
secrecy crate pointed to the master branch of this repository.  Yet the
master branch is no longer available; develop is used instead.  This
patch fixes the URLs to point to the devlop branch.

Author: robinkrahl

hkd32/Cargo.toml

@@ -11,7 +11,7 @@ authors     = ["Tony Arcieri <[email protected]>"]
 license     = "Apache-2.0"
 edition     = "2018"
 homepage    = "https://github.com/iqlusioninc/crates/"
-repository  = "https://github.com/iqlusioninc/crates/tree/master/hkd32"
+repository  = "https://github.com/iqlusioninc/crates/tree/develop/hkd32"
 readme      = "README.md"
 categories  = ["cryptography", "no-std"]
 keywords    = ["bip32", "derivation", "hd", "hmac", "key"]

secrecy/Cargo.toml

@@ -11,7 +11,7 @@ authors     = ["Tony Arcieri <[email protected]>"]
 license     = "Apache-2.0 OR MIT"
 edition     = "2018"
 homepage    = "https://github.com/iqlusioninc/crates/"
-repository  = "https://github.com/iqlusioninc/crates/tree/master/secrecy"
+repository  = "https://github.com/iqlusioninc/crates/tree/develop/secrecy"
 readme      = "README.md"
 categories  = ["cryptography", "memory-management", "no-std", "os"]
 keywords    = ["clear", "memory", "secret", "secure", "wipe"]