Merge rust-bitcoin/rust-bitcoin#6971: units: Fix typos

### units/src/amount/mod.rs
@@ -3,8 +3,8 @@
 //! Bitcoin amounts.
 //!
 //! This module mainly introduces the [`Amount`] and [`SignedAmount`] types to express the bitcoin
-//! amounts supporting arithmetic, conversions between denomintaions and other important
-//! opertaions.
+//! amounts supporting arithmetic, conversions between denominations and other important
+//! operations.
 //!
 //! # The 21M limit
 //!

### units/src/amount/ops.rs
@@ -224,7 +224,7 @@ crate::internal_macros::impl_op_for_references! {
     impl ops::Rem<NonZeroI64> for SignedAmount {
         type Output = SignedAmount;
 
-        fn rem(self, modulus: NonZeroI64) -> Self::Output { SignedAmount::from_sat(self.to_sat() % modulus.get()).expect("construction from reamainder cannot fail") }
+        fn rem(self, modulus: NonZeroI64) -> Self::Output { SignedAmount::from_sat(self.to_sat() % modulus.get()).expect("construction from remainder cannot fail") }
     }
     impl ops::Rem<i64> for NumOpResult<SignedAmount> {
         type Output = NumOpResult<SignedAmount>;

### units/src/amount/unsigned.rs
@@ -278,7 +278,7 @@ impl Amount {
     /// Constructs an [`Amount`] from floating-point notation in the given [`Denomination`].
     ///
     /// **Warning:** due to precision loss, using floats for financial operations is generally not
-    /// recommended. It an be avoided by using an integer number of satoshis or string-encoded btc
+    /// recommended. It can be avoided by using an integer number of satoshis or string-encoded btc
     /// in APIs that require it.
     ///
     /// # Errors

### units/src/lib.rs
@@ -35,7 +35,7 @@
 //!
 //! ## Policy
 //!
-//! Our MSRV policy it to only bump MSRV to the one that is available on the latest Debian stable
+//! Our MSRV policy is to only bump MSRV to the one that is available on the latest Debian stable
 //! and is at least two years old. However, we will try to be even more conservative when practical
 //! given this crate is very widely used.
 //!

### units/src/locktime/absolute/mod.rs
@@ -937,7 +937,7 @@ mod tests {
 
     #[test]
     fn satisfied_by_time() {
-        let time_before = MedianTimePast::from_u32(1_653_109_200).unwrap(); // "May 21th 2022, 5am UTC.
+        let time_before = MedianTimePast::from_u32(1_653_109_200).unwrap(); // "May 21st 2022, 5am UTC.
         let time = MedianTimePast::from_u32(1_653_195_600).unwrap(); // "May 22nd 2022, 5am UTC.
         let time_after = MedianTimePast::from_u32(1_653_282_000).unwrap(); // "May 23rd 2022, 5am UTC.