Fix spelling (#3845)

* Fix spelling

* Add missing entry

* Proper fix for KeyPair

polkadot/bridges/relays/bin-substrate/src/cli/derive_account.rs

@@ -27,7 +27,7 @@ use structopt::StructOpt;
 /// since messages sent over the bridge will be able to spend these.
 #[derive(StructOpt)]
 pub struct DeriveAccount {
-	/// A bridge instance to initalize.
+	/// A bridge instance to initialize.
 	#[structopt(possible_values = &FullBridge::variants(), case_insensitive = true)]
 	bridge: FullBridge,
 	/// Source-chain address to derive Target-chain address from.

polkadot/bridges/relays/bin-substrate/src/cli/encode_message.rs

@@ -40,7 +40,7 @@ pub enum MessagePayload {
 /// A `MessagePayload` to encode.
 #[derive(StructOpt)]
 pub struct EncodeMessage {
-	/// A bridge instance to initalize.
+	/// A bridge instance to initialize.
 	#[structopt(possible_values = &FullBridge::variants(), case_insensitive = true)]
 	bridge: FullBridge,
 	#[structopt(flatten)]

polkadot/bridges/relays/bin-substrate/src/cli/init_bridge.rs

@@ -25,7 +25,7 @@ use structopt::{clap::arg_enum, StructOpt};
 /// Initialize bridge pallet.
 #[derive(StructOpt)]
 pub struct InitBridge {
-	/// A bridge instance to initalize.
+	/// A bridge instance to initialize.
 	#[structopt(possible_values = &InitBridgeName::variants(), case_insensitive = true)]
 	bridge: InitBridgeName,
 	#[structopt(flatten)]

polkadot/bridges/relays/bin-substrate/src/cli/mod.rs

@@ -72,7 +72,7 @@ pub enum Command {
 	/// The message is being sent to the source chain, delivered to the target chain and dispatched
 	/// there.
 	SendMessage(send_message::SendMessage),
-	/// Generate SCALE-encoded `Call` for choosen network.
+	/// Generate SCALE-encoded `Call` for the chosen network.
 	///
 	/// The call can be used either as message payload or can be wrapped into a transaction
 	/// and executed on the chain directly.
@@ -235,7 +235,7 @@ pub trait CliChain: relay_substrate_client::Chain {
 
 	/// Bridge Message Payload type.
 	///
-	/// TODO [#854] This should be removed in favour of target-specifc types.
+	/// TODO [#854] This should be removed in favor of target-specifc types.
 	type MessagePayload;
 
 	/// Numeric value of SS58 format.
@@ -354,7 +354,7 @@ where
 }
 
 /// Create chain-specific set of configuration objects: connection parameters,
-/// signing parameters and bridge initialisation parameters.
+/// signing parameters and bridge initialization parameters.
 #[macro_export]
 macro_rules! declare_chain_options {
 	($chain:ident, $chain_prefix:ident) => {
@@ -385,7 +385,7 @@ macro_rules! declare_chain_options {
 			}
 
 			impl [<$chain SigningParams>] {
-				/// Parse signing params into chain-specific KeyPair.
+				/// Parse signing params into chain-specific `KeyPair`.
 				pub fn to_keypair<Chain: CliChain>(&self) -> anyhow::Result<Chain::KeyPair> {
 					use sp_core::crypto::Pair;
 

polkadot/bridges/relays/bin-substrate/src/messages_lane.rs

@@ -59,7 +59,7 @@ pub trait SubstrateMessageLane: MessageLane {
 	const INBOUND_LANE_LATEST_RECEIVED_NONCE_METHOD: &'static str;
 	/// Name of the runtime method that returns latest confirmed (reward-paid) nonce at the target chain.
 	const INBOUND_LANE_LATEST_CONFIRMED_NONCE_METHOD: &'static str;
-	/// Numebr of the runtime method that returns state of "unrewarded relayers" set at the target chain.
+	/// Number of the runtime method that returns state of "unrewarded relayers" set at the target chain.
 	const INBOUND_LANE_UNREWARDED_RELAYERS_STATE: &'static str;
 
 	/// Name of the runtime method that returns id of best finalized source header at target chain.

polkadot/bridges/relays/bin-substrate/src/on_demand_headers.rs

@@ -248,7 +248,7 @@ async fn background_task<SourceChain, TargetChain, TargetSign>(
 	}
 }
 
-/// Returns `Some()` with inclusive range of headers which must be scanned for manadatory headers
+/// Returns `Some()` with inclusive range of headers which must be scanned for mandatory headers
 /// and the first of such headers must be submitted to the target node.
 async fn mandatory_headers_scan_range<C: Chain>(
 	best_finalized_source_header_at_source: Option<C::BlockNumber>,