Spellling corrections (no code changes) (#8971)

* Spelling corrections

* As this might break let's do as a separate PR

substrate/client/transaction-pool/graph/src/ready.rs

@@ -240,7 +240,7 @@ impl<Hash: hash::Hash + Member + Serialize, Ex> ReadyTransactions<Hash, Ex> {
 		self.ready.read().contains_key(hash)
 	}
 
-	/// Retrive transaction by hash
+	/// Retrieve transaction by hash
 	pub fn by_hash(&self, hash: &Hash) -> Option<Arc<Transaction<Hash, Ex>>> {
 		self.by_hashes(&[hash.clone()]).into_iter().next().unwrap_or(None)
 	}

substrate/client/transaction-pool/graph/src/validated_pool.rs

@@ -155,7 +155,7 @@ impl<B: ChainApi> ValidatedPool<B> {
 
 	/// A fast check before doing any further processing of a transaction, like validation.
 	///
-	/// If `ingore_banned` is `true`, it will not check if the transaction is banned.
+	/// If `ignore_banned` is `true`, it will not check if the transaction is banned.
 	///
 	/// It checks if the transaction is already imported or banned. If so, it returns an error.
 	pub fn check_is_known(