diff --git a/README.md b/README.md
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+++ b/README.md
@@ -3,13 +3,13 @@ How to Make a Computer Operating System
 
 Online book about how to write a computer operating system in C/C++ from scratch.
 
-**Caution**: This repository is a remake of my old course. It was written several years ago [as one of my first projects when I was in High School](https://github.com/SamyPesse/devos), I'm still refactoring some parts. The original course was in French and I'm not an English native. I'm going to continue and improve this course in my free-time.
+**Caution**: This repository is a remake of my old course. It was written several years ago [as one of my first projects when I was in High School](https://github.com/SamyPesse/devos). I'm still refactoring some parts. The original course was in French and I'm not an English native. I'm going to continue to improve this course in my free time.
 
 **Book**: An online version is available at [http://samypesse.gitbooks.io/how-to-create-an-operating-system/](http://samypesse.gitbooks.io/how-to-create-an-operating-system/) (PDF, Mobi and ePub). It was generated using [GitBook](https://www.gitbook.com/).
 
 **Source Code**: All the system source code will be stored in the [src](https://github.com/SamyPesse/How-to-Make-a-Computer-Operating-System/tree/master/src) directory. Each step will contain links to the different related files.
 
-**Contributions**: This course is open to contributions, feel free to signal errors with issues or directly correct the errors with pull-requests.
+**Contributions**: This course is open to contributions. Feel free to signal errors with issues or directly correct the errors with pull requests.
 
 **Questions**: Feel free to ask any questions by adding issues or commenting sections.