Apply typo fixes from @tcharding

Co-authored-by: Tobin C. Harding <[email protected]>

src/wallet/tx_builder.rs

@@ -562,12 +562,12 @@ impl<'a, B, D: BatchDatabase, Cs: CoinSelectionAlgorithm<D>> TxBuilder<'a, B, D,
 
     /// Sets the address to *drain* excess coins to.
     ///
-    /// Usually, when there is excess coins they are sent to a change address generated by the
+    /// Usually, when there are excess coins they are sent to a change address generated by the
     /// wallet. This option replaces the usual change address with an arbitrary `script_pubkey` of
     /// your choosing. Just as with a change output, if the drain output is not needed (the excess
     /// coins are too small) it will not be included in the resulting transaction. The only
     /// difference is that it is valid to use `drain_to` without setting any ordinary recipients
-    /// with [`add_recipient`] (but it is perfectly find to add recipients as well).
+    /// with [`add_recipient`] (but it is perfectly fine to add recipients as well).
     ///
     /// When bumping the fees of a transaction made with this option, you probably want to
     /// use [`allow_shrinking`] to allow this output to be reduced to pay for the extra fees.
@@ -587,9 +587,9 @@ impl<'a, B, D: BatchDatabase, Cs: CoinSelectionAlgorithm<D>> TxBuilder<'a, B, D,
     /// let mut tx_builder = wallet.build_tx();
     ///
     /// tx_builder
-    ///     // spend all outputs in this wallet
+    ///     // Spend all outputs in this wallet.
     ///     .drain_wallet()
-    ///     // send the excess (which is all the coins minus the fee) to this address
+    ///     // Send the excess (which is all the coins minus the fee) to this address.
     ///     .drain_to(to_address.script_pubkey())
     ///     .fee_rate(FeeRate::from_sat_per_vb(5.0))
     ///     .enable_rbf();
@@ -612,7 +612,7 @@ impl<'a, B, D: BatchDatabase> TxBuilder<'a, B, D, DefaultCoinSelectionAlgorithm,
     /// `script_pubkey` in order to bump the transaction fee. Without specifying this the wallet
     /// will attempt to find a change output to shrink instead.
     ///
-    /// **Note** that the output may shrunk to below the dust limit and therefore removed. If it is
+    /// **Note** that the output may shrink to below the dust limit and therefore be removed. If it is
     /// preserved then it is currently not guaranteed to be in the same position as it was
     /// originally.
     ///