Standardize function doc Panics

Changed the function docs to have the same format of
///
/// # Panics
///
/// description

bitcoin/src/blockdata/script/owned.rs

@@ -241,7 +241,7 @@ impl ScriptBuf {
 
     /// Add a single instruction to the script.
     ///
-    /// ## Panics
+    /// # Panics
     ///
     /// The method panics if the instruction is a data push with length greater or equal to
     /// 0x100000000.

bitcoin/src/blockdata/script/push_bytes.rs

@@ -235,7 +235,7 @@ mod primitive {
 
         /// Remove the byte at `index` and return it.
         ///
-        /// ## Panics
+        /// # Panics
         ///
         /// This method panics if `index` is out of bounds.
         #[track_caller]

bitcoin/src/merkle_tree/block.rs

@@ -216,6 +216,8 @@ impl PartialMerkleTree {
     /// The `txids` are the transaction hashes of the block and the `matches` is the contains flags
     /// wherever a tx hash should be included in the proof.
     ///
+    /// # Panics
+    ///
     /// Panics when `txids` is empty or when `matches` has a different length
     ///
     /// # Examples

bitcoin/src/psbt/mod.rs

@@ -71,7 +71,7 @@ impl Psbt {
     ///
     /// The function returns error when UTXO information is not present or is invalid.
     ///
-    /// ## Panics
+    /// # Panics
     ///
     /// The function panics if the length of transaction inputs is not equal to the length of PSBT inputs.
     pub fn iter_funding_utxos(&self) -> impl Iterator<Item = Result<&TxOut, Error>> {

bitcoin/src/taproot/serialized_signature.rs

@@ -133,7 +133,7 @@ impl<'a> TryFrom<&'a SerializedSignature> for Signature {
 impl SerializedSignature {
     /// Creates `SerializedSignature` from data and length.
     ///
-    /// ## Panics
+    /// # Panics
     ///
     /// If `len` > `MAX_LEN`
     #[inline]

units/src/amount.rs

@@ -886,7 +886,7 @@ impl Amount {
     /// Convert from a value expressing integer values of bitcoins to an [Amount]
     /// in const context.
     ///
-    /// ## Panics
+    /// # Panics
     ///
     /// The function panics if the argument multiplied by the number of sats
     /// per bitcoin overflows a u64 type.
@@ -1046,12 +1046,20 @@ impl Amount {
 
     /// Unchecked addition.
     ///
-    /// Computes `self + rhs`.  Panics in debug mode, wraps in release mode.
+    /// Computes `self + rhs`.
+    ///
+    /// # Panics
+    ///
+    /// On overflow, panics in debug mode, wraps in release mode.
     pub fn unchecked_add(self, rhs: Amount) -> Amount { Self(self.0 + rhs.0) }
 
     /// Unchecked subtraction.
     ///
-    /// Computes `self - rhs`.  Panics in debug mode, wraps in release mode.
+    /// Computes `self - rhs`.
+    ///
+    /// # Panics
+    ///
+    /// On overflow, panics in debug mode, wraps in release mode.
     pub fn unchecked_sub(self, rhs: Amount) -> Amount { Self(self.0 - rhs.0) }
 
     /// Convert to a signed amount.
@@ -1434,12 +1442,20 @@ impl SignedAmount {
 
     /// Unchecked addition.
     ///
-    /// Computes `self + rhs`.  Panics in debug mode, wraps in release mode.
+    /// Computes `self + rhs`.
+    ///
+    /// # Panics
+    ///
+    /// On overflow, panics in debug mode, wraps in release mode.
     pub fn unchecked_add(self, rhs: SignedAmount) -> SignedAmount { Self(self.0 + rhs.0) }
 
     /// Unchecked subtraction.
     ///
-    /// Computes `self - rhs`.  Panics in debug mode, wraps in release mode.
+    /// Computes `self - rhs`.
+    ///
+    /// # Panics
+    ///
+    /// On overflow, panics in debug mode, wraps in release mode.
     pub fn unchecked_sub(self, rhs: SignedAmount) -> SignedAmount { Self(self.0 - rhs.0) }
 
     /// Subtraction that doesn't allow negative [SignedAmount]s.