fix: Found and fixed some spelling errors.

src/1_futures_in_rust.md

@@ -119,8 +119,8 @@ this task.
 
 So, how does these three parts work together? They do that through an object called the `Waker`.
 The `Waker` is how the reactor tells the executor that a specific Future is ready to run. Once you
-understand the lifecycle and ownership of a Waker, you'll understand how futures work from a user's
-perspective. Here is the lifecycle:
+understand the life cycle and ownership of a Waker, you'll understand how futures work from a user's
+perspective. Here is the life cycle:
 
 - A Waker is created by the **executor**
 - When a future is registered with an executor, it’s given a clone of the Waker object created by

src/2_a_mental_model_for_futures.md

@@ -2,7 +2,7 @@
 
 The main goal in this part is to build a high level
 mental model of how the different pieces we read about in the previous chapter
-works toghether. I hope this will make it easier to understand what we just read
+works together. I hope this will make it easier to understand what we just read
 about in the previous chapter and also explain why we take a deep dive into topics
 like trait objects and generators in the next few chapters.
 

src/6_future_example.md

@@ -677,7 +677,7 @@ The last point is relevant when we move on the the last paragraph.
 > also look at ways to fix it. For now, just make a note of it so you're aware
 > of the problem.
 
-## Async/Await and concurrecy
+## Async/Await and concurrency
 
 The `async` keyword can be used on functions as in `async fn(...)` or on a
 block as in `async { ... }`. Both will turn your function, or block, into a

src/conclusion.md

@@ -30,7 +30,7 @@ thing in a slightly different way to get some inspiration.
 * Do you want to pass around a reference to this information using an `Arc`?
 * Do you want to make a global `Reactor` so it can be accessed from anywhere?
 
-### Building a better exectuor
+### Building a better executor
 
 Right now, we can only run one and one future only. Most runtimes has a `spawn`
 function which let's you start off a future and `await` it later so you