Fix typo in SwiftConcurrency.md (#2644)

Author: chagmn

Documentation/SwiftConcurrency.md

@@ -66,10 +66,10 @@ stream.asObservable()
 
 ### Wrapping an `async` result as a `Single`
 
-If you already have an async piece of work that returns a single result you wish to await, you can bridge it back to the Rx wordl by using `Single.create`, a special overload which takes an `async throws` closure where you can simply await your async work:
+If you already have an async piece of work that returns a single result you wish to await, you can bridge it back to the Rx world by using `Single.create`, a special overload which takes an `async throws` closure where you can simply await your async work:
 
 ```swift
-func doIncredibleWork() async throws -> AmazingRespones {
+func doIncredibleWork() async throws -> AmazingResponse {
     ...
 }