chore: fix some minor issues in the comments

Signed-off-by: mountdisk <mountdisk@icloud.com>

crates/cdk-common/src/pub_sub/mod.rs

@@ -1,7 +1,7 @@
 //! Publish–subscribe pattern.
 //!
 //! This is a generic implementation for
-//! [NUT-17(<https://github.com/cashubtc/nuts/blob/main/17.md>) with a type
+//! [NUT-17](<https://github.com/cashubtc/nuts/blob/main/17.md>) with a type
 //! agnostic Publish-subscribe manager.
 //!
 //! The manager has a method for subscribers to subscribe to events with a

crates/cdk-signatory/src/signatory.rs

@@ -132,7 +132,7 @@ impl From<&(MintKeySetInfo, MintKeySet)> for SignatoryKeySet {
 #[async_trait::async_trait]
 /// Signatory trait
 pub trait Signatory {
-    /// The Signatory implementation name. This may be exposed, so being as discreet as possible is
+    /// The Signatory implementation name. This may be exposed, so being as discrete as possible is
     /// advised.
     fn name(&self) -> String;