Fixed bug in include, Added submodule, Updated license, readme and help text

readme.md

@@ -3,7 +3,18 @@ A small tool that tells you which [CPU architecture](https://learn.microsoft.com
 a given [Windows PE](https://learn.microsoft.com/en-us/windows/win32/debug/pe-format) is made for.
 
 ## Usage
-TODO
+```
+PEArch.exe [/?] [/E|/AsError] [/H|/AsHex] [/F|/FullText] <File>
+
+Options:
+  /?             Prints this help text, and some additional details.
+  /E, /AsError   Gives out the result as an error code.
+  /H, /AsHex     Prints the architecture as a hex number.
+  /F, /FullText  Prints a longer description of the architecture.
+```
+
+## Cloning
+**TODO: Add instructions related to the submodule**
 
 ## License
 All the code in this repo is released in the [Public Domain](LICENSE).