Update README.md

Update according to @29jim comments on #162.

interrupts/README.md

@@ -1,6 +1,6 @@
 # Interrupts and Interrupt Handling
 
-You will find a couple of posts which describe an interrupts and an exceptions handling in the linux kernel.
+You will find a couple of posts which describe interrupts and exceptions handling in the linux kernel.
 
 * [Interrupts and Interrupt Handling. Part 1.](https://github.com/0xAX/linux-insides/blob/master/interrupts/interrupts-1.md) - describes an interrupts handling theory.
 * [Start to dive into interrupts in the Linux kernel](https://github.com/0xAX/linux-insides/blob/master/interrupts/interrupts-2.md) - this part starts to describe interrupts and exceptions handling related stuff from the early stage.