Fix doc spelling

Author: LLFourn

src/psbt/mod.rs

@@ -815,10 +815,10 @@ impl PsbtExt for Psbt {
 
 /// Extension trait for PSBT inputs
 pub trait PsbtInputExt {
-    /// Given the decriptor for utxo being spent, populate the input with all the required fields to
+    /// Given the descriptor for utxo being spent, populate the input with all the required fields to
     /// spend it.
     ///
-    /// If the descriptor contains wilcards or otherwise cannot be transformed into a concrete
+    /// If the descriptor contains wildcards or otherwise cannot be transformed into a concrete
     /// descriptor an error will returned. The descriptor *can* (and should) have extended keys in
     /// it so PSBT fields like `bip32_derivation` and `tap_key_origins` can be populated.
     ///