fix typos (#7068)

Co-authored-by: Dónal Murray <donalm@seadanda.dev>
Co-authored-by: Dónal Murray <donal.murray@parity.io>
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

docs/sdk/src/reference_docs/frame_benchmarking_weight.rs

@@ -96,7 +96,7 @@
 //! Two ways exist to run the benchmarks of a runtime.
 //!
 //! 1. The old school way: Most Polkadot-SDK based nodes (such as the ones integrated in
-//!    [`templates`]) have an a `benchmark` subcommand integrated into themselves.
+//!    [`templates`]) have a `benchmark` subcommand integrated into themselves.
 //! 2. The more [`crate::reference_docs::omni_node`] compatible way of running the benchmarks would
 //!    be using [`frame-omni-bencher`] CLI, which only relies on a runtime.
 //!

substrate/frame/balances/src/impl_currency.rs

@@ -632,7 +632,7 @@ where
 	///
 	/// This is `Polite` and thus will not repatriate any funds which would lead the total balance
 	/// to be less than the frozen amount. Returns `Ok` with the actual amount of funds moved,
-	/// which may be less than `value` since the operation is done an a `BestEffort` basis.
+	/// which may be less than `value` since the operation is done on a `BestEffort` basis.
 	fn repatriate_reserved(
 		slashed: &T::AccountId,
 		beneficiary: &T::AccountId,

substrate/frame/benchmarking/src/v1.rs

@@ -1894,7 +1894,7 @@ macro_rules! add_benchmark {
 /// This macro allows users to easily generate a list of benchmarks for the pallets configured
 /// in the runtime.
 ///
-/// To use this macro, first create a an object to store the list:
+/// To use this macro, first create an object to store the list:
 ///
 /// ```ignore
 /// let mut list = Vec::<BenchmarkList>::new();

substrate/frame/elections-phragmen/src/lib.rs

@@ -616,7 +616,7 @@ pub mod pallet {
 	#[pallet::generate_deposit(pub(super) fn deposit_event)]
 	pub enum Event<T: Config> {
 		/// A new term with new_members. This indicates that enough candidates existed to run
-		/// the election, not that enough have has been elected. The inner value must be examined
+		/// the election, not that enough have been elected. The inner value must be examined
 		/// for this purpose. A `NewTerm(\[\])` indicates that some candidates got their bond
 		/// slashed and none were elected, whilst `EmptyTerm` means that no candidates existed to
 		/// begin with.

substrate/frame/recovery/src/lib.rs

@@ -403,7 +403,7 @@ pub mod pallet {
 				.map_err(|e| e.error)
 		}
 
-		/// Allow ROOT to bypass the recovery process and set an a rescuer account
+		/// Allow ROOT to bypass the recovery process and set a rescuer account
 		/// for a lost account directly.
 		///
 		/// The dispatch origin for this call must be _ROOT_.

substrate/frame/support/src/storage/child.rs

@@ -163,7 +163,7 @@ pub fn kill_storage(child_info: &ChildInfo, limit: Option<u32>) -> KillStorageRe
 /// operating on the same prefix should pass `Some` and this value should be equal to the
 /// previous call result's `maybe_cursor` field. The only exception to this is when you can
 /// guarantee that the subsequent call is in a new block; in this case the previous call's result
-/// cursor need not be passed in an a `None` may be passed instead. This exception may be useful
+/// cursor need not be passed in and a `None` may be passed instead. This exception may be useful
 /// then making this call solely from a block-hook such as `on_initialize`.
 
 /// Returns [`MultiRemovalResults`] to inform about the result. Once the resultant `maybe_cursor`

substrate/frame/support/src/storage/unhashed.rs

@@ -124,7 +124,7 @@ pub fn kill_prefix(prefix: &[u8], limit: Option<u32>) -> sp_io::KillStorageResul
 /// operating on the same prefix should pass `Some` and this value should be equal to the
 /// previous call result's `maybe_cursor` field. The only exception to this is when you can
 /// guarantee that the subsequent call is in a new block; in this case the previous call's result
-/// cursor need not be passed in an a `None` may be passed instead. This exception may be useful
+/// cursor need not be passed in and a `None` may be passed instead. This exception may be useful
 /// then making this call solely from a block-hook such as `on_initialize`.
 ///
 /// Returns [`MultiRemovalResults`](sp_io::MultiRemovalResults) to inform about the result. Once the

substrate/frame/support/src/traits/preimages.rs

@@ -38,7 +38,7 @@ pub enum Bounded<T, H: Hash> {
 	/// for transitioning from legacy state. In the future we will make this a pure
 	/// `Dummy` item storing only the final `dummy` field.
 	Legacy { hash: H::Output, dummy: core::marker::PhantomData<T> },
-	/// A an bounded `Call`. Its encoding must be at most 128 bytes.
+	/// A bounded `Call`. Its encoding must be at most 128 bytes.
 	Inline(BoundedInline),
 	/// A hash of the call together with an upper limit for its size.`
 	Lookup { hash: H::Output, len: u32 },