threads2: simplify threads2

info.toml

@@ -1136,25 +1136,17 @@ to **immutable** data. But we want to *change* the number of `jobs_completed`
 so we'll need to also use another type that will only allow one thread to
 mutate the data at a time. Take a look at this section of the book:
 https://doc.rust-lang.org/book/ch16-03-shared-state.html#atomic-reference-counting-with-arct
-and keep reading if you'd like more hints :)
 
-Do you now have an `Arc` `Mutex` `JobStatus` at the beginning of main? Like:
+Keep reading if you'd like more hints :)
+
+Do you now have an `Arc<Mutex<JobStatus>>` at the beginning of `main`? Like:
 ```
 let status = Arc::new(Mutex::new(JobStatus { jobs_completed: 0 }));
 ```
 
-Similar to the code in the example in the book that happens after the text
-that says 'Sharing a Mutex<T> Between Multiple Threads'. If not, give that a
-try! If you do and would like more hints, keep reading!!
-
-Make sure neither of your threads are holding onto the lock of the mutex
-while they are sleeping, since this will prevent the other thread from
-being allowed to get the lock. Locks are automatically released when
-they go out of scope.
-
-If you've learned from the sample solutions, I encourage you to come
-back to this exercise and try it again in a few days to reinforce
-what you've learned :)"""
+Similar to the code in the following example in the book:
+https://doc.rust-lang.org/book/ch16-03-shared-state.html#sharing-a-mutext-between-multiple-threads
+"""
 
 [[exercises]]
 name = "threads3"