fix a few more typos (#36)

Author: m-fila

coroutine_skeleton.hpp

@@ -60,10 +60,10 @@ struct ReturnType::promise_type {
         return {ReturnType::handle_type::from_promise(*this)};
     }
     // REQUIRED
-    // called on coroutine start, then implicitly `co_await` the retuned value
+    // called on coroutine start, then implicitly `co_await` the returned value
     /*awaitable*/ initial_suspend();
     // REQUIRED
-    // called on coroutine completion, then implicitly `co_await` the retuned
+    // called on coroutine completion, then implicitly `co_await` the returned
     // value
     /*awaitable*/ final_suspend();
     // REQUIRED

examples/alien.cpp

@@ -169,7 +169,7 @@ int main() {
     log() << "main Starting\n";
     CoroutineTests::Threadpool threadpool(1);
     auto scheduler = [&threadpool](std::coroutine_handle<> handle) {
-        log() << "scheduler Reschedule called, enqueueing resumption\n";
+        log() << "scheduler Reschedule called, enqueuing  resumption\n";
         threadpool.enqueue_task(handle);
     };
     log() << "main Launching algorithm...\n";

examples/alien_manual.cpp

@@ -202,7 +202,7 @@ int main() {
             log() << "main Detected DONE state, exiting loop\n";
             break;
         }
-        log() << "main Algorithm ready to resume, enqueueing...\n";
+        log() << "main Algorithm ready to resume, enqueuing ...\n";
         state.store(State::SCHEDULED);
         threadpool.enqueue_task([&state, &t, &result]() {
             std::optional<CoroutineTests::alien::manual_algorithm::StatusCode>