Fixed typo

LEARN.md

@@ -1,5 +1,5 @@
 ## Welcome!
-Welcome! Thank you for your continued interest for the Jas assembler. For those who don't know, Jas is a MIT licensed, free and open-source x86 assembler capable of generating ELF files designed to run on on linux systems. Jas is written in C and is designed to be simple, fast and easy to use. This project was also designed to be readable and easy to understand and allows others to learn from the code and expand their knowledge on x86 assembly and how these instructions are encoded; helping people who are willing to learn how to roll their own assembler, or want an understanding under the hood of how an assembler works. 
+Welcome! Thank you for your continued interest for the Jas assembler. For those who don't know, Jas is a MIT licensed, free and open-source x86 assembler capable of generating ELF files designed to run on linux systems. Jas is written in C and is designed to be simple, fast and easy to use. This project was also designed to be readable and easy to understand and allows others to learn from the code and expand their knowledge on x86 assembly and how these instructions are encoded; helping people who are willing to learn how to roll their own assembler, or want an understanding under the hood of how an assembler works. 
 
 ### Perquisites
 In this guide, I would assume that you have a solid background in computer science and low-level software engineering as well as a being proficient in C and finally understanding of x86 assembly and some encoding structures can be very helpful.