README documentation

README.md

@@ -12,6 +12,13 @@ more about kernels and low level system functionality.<br/>
 In order to help with comprehension, there are a lot<br/>
 of inline comments descibing what each part does.
 
+# Commands
+- CAT <filename>: outputs the contents of the file.
+- LS: outputs a list of files on the system .
+- CLEAR: clears the screen.
+- REBOOT: reboots the system, this can also be done with [esc].
+- BAS <filename>: runs a basic script.
+
 # Running it
 In order to build this project on a Linux system run<br/>
 the following commands.
@@ -38,3 +45,10 @@ boot the virtual machine (QEMU) for testing purposes.<br/>
 ```
 This will dump the contents of memory in /dev/shm/qemu-ram<br/>
 To allow for easier debugging.
+
+# BASIC development
+Please refer to the [MikeOS BASIC documentation](https://mikeos.sourceforge.net/handbook-appdev-basic.html)<br/>
+docs on writing BASIC code. In order to create new<br/>
+files, place them in the /data/ directory, not the file<br/>
+names are limited to 11 characters due to FAT12 limitations<br/>
+(8 for the name and 3 for the extension).