Fix docs links

Fix all the docs build warnings for broken links.

Author: tcharding

src/descriptor/mod.rs

@@ -677,9 +677,9 @@ impl Descriptor<DescriptorPublicKey> {
 
     /// Derive a [`Descriptor`] with a concrete [`bitcoin::PublicKey`] at a given index
     /// Removes all extended pubkeys and wildcards from the descriptor and only leaves
-    /// concrete [`bitcoin::PublicKey`]. All [`crate::XOnlyKey`]s are converted to [`bitcoin::PublicKey`]
-    /// by adding a default(0x02) y-coordinate. For [`crate::descriptor::Tr`] descriptor,
-    /// spend info is also cached.
+    /// concrete [`bitcoin::PublicKey`]. All [`bitcoin::XOnlyPublicKey`]s are converted
+    /// to [`bitcoin::PublicKey`]s by adding a default(0x02) y-coordinate. For [`Tr`]
+    /// descriptor, spend info is also cached.
     ///
     /// # Examples
     ///

src/interpreter/mod.rs

@@ -217,7 +217,7 @@ impl<'txin> Interpreter<'txin> {
     }
 
     /// Verify a signature for a given transaction and prevout information
-    /// This is a low level API, [`Interpreter::iter`] or [`Interpreter::iter_assume_sig`]
+    /// This is a low level API, [`Interpreter::iter`] or [`Interpreter::iter_assume_sigs`]
     /// should satisfy most use-cases.
     /// Returns false if
     /// - the signature verification fails

src/psbt/mod.rs

@@ -559,8 +559,10 @@ pub trait PsbtExt {
     /// # Arguments:
     ///
     /// * `idx`: The input index of psbt to sign
-    /// * `cache`: The [`sighash::SighashCache`] for used to cache/read previously cached computations
+    /// * `cache`: The [`SighashCache`] for used to cache/read previously cached computations
     /// * `tapleaf_hash`: If the output is taproot, compute the sighash for this particular leaf.
+    ///
+    /// [`SighashCache`]: bitcoin::util::sighash::SighashCache
     fn sighash_msg<T: Deref<Target = bitcoin::Transaction>>(
         &self,
         idx: usize,