some minor changes

src/4_pin.md

@@ -30,7 +30,7 @@ This naming scheme is Rust deliberately testing if you're too tired to safely im
 `!Unpin` it's a good sign that it's time to lay down the work and start over
 tomorrow with a fresh mind.
 
-> That was of course a joke. There are very valid reasons for the names
+> I hope you didn't mind the joke. There are valid reasons for the names
 > that were chosen. If you want you can read a bit of the discussion from the
 > [internals thread][internals_unpin]. The best takeaway from there in my eyes
 > is this quote from `tmandry`:

src/6_future_example.md

@@ -569,7 +569,7 @@ fn main() {
 #         let handle = thread::spawn(move || {
 #             // This simulates some I/O resource
 #             for event in rx {
-#                 println!("GOT EVENT: {:?}", event);
+#                 println!("REACTOR: {:?}", event);
 #                 let rl_clone = rl_clone.clone();
 #                 match event {
 #                     Event::Close => break,
@@ -622,6 +622,14 @@ fn main() {
 # }
 ```
 
+I added a debug printout of the events the reactor registered interest for so we can observe
+two things:
+
+1. How the `Waker` object looks just like the _trait object_ we talked about in an earlier chapter
+2. In what order the events register interest with the reactor
+
+The last point is relevant when we move on the the last paragraph.
+
 ## Async/Await and concurrent Futures
 
 This is the first time we actually see the `async/await` syntax so let's
@@ -844,7 +852,7 @@ fn main() {
 #         let handle = thread::spawn(move || {
 #             // This simulates some I/O resource
 #             for event in rx {
-#                 println!("GOT EVENT: {:?}", event);
+#                 println!("REACTOR: {:?}", event);
 #                 let rl_clone = rl_clone.clone();
 #                 match event {
 #                     Event::Close => break,

src/8_finished_example.md

@@ -154,7 +154,7 @@ impl Reactor {
         let handle = thread::spawn(move || {
             // This simulates some I/O resource
             for event in rx {
-                println!("GOT EVENT: {:?}", event);
+                println!("REACTOR: {:?}", event);
                 let rl_clone = rl_clone.clone();
                 match event {
                     Event::Close => break,