Updated README.md

Added build instructions

README.md

@@ -1 +1,29 @@
 # LXC
+
+LXC is a compiler to compile .lx files into .c files. LX is a custom langauge that I have developed,
+the documentation for the language (and compiler) can be found [here WIP](https://www.youtube.com/watch?v=xvFZjo5PgG0).
+
+### Build
+
+```
+git clone https://github.com/PashaBibko/LXC.git LXC
+cd LXC
+mkdir -p build
+cd build
+cmake ..
+cmake --build .
+```
+
+##### Windows
+
+The .exe will be located in the LXC/(Debug or Release) folder.
+
+##### UNIX based
+
+The outputted binary will be located in the LXC folder.
+
+##### Other
+
+Operating systems that are not listed above are not supported. To run the code you will have to modify it yourself.
+All code that should need to be changed is within the [Common folder](https://github.com/PashaBibko/LXC/tree/main/Common).
+https://www.youtube.com/watch?v=Xx-NcqmveDc