Fix the little typo

Yes, it made me feel unconfortable... By the way, I wrote some little articles but more about how to do some linux kernel stuff [here](https://github.com/GuillaumeGomez/howto-linux-kernel). Maybe you're interested to add them ?

Anyway, it was very interesting to read. Nice job !

README.md

@@ -9,7 +9,7 @@ Series of posts about linux kernel.
 
 **Contributions**: Feel free to create issues or create pull-requests if you find issues or my English is poor.
 
-**Please read [CONTRIBUTING.md](https://github.com/0xAX/linux-insides/blob/master/CONTRIBUTING.md) before you pushed your chanages.**
+**Please read [CONTRIBUTING.md](https://github.com/0xAX/linux-insides/blob/master/CONTRIBUTING.md) before you pushed your changes.**
 
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