[README] Usage information for the parser

1 files changed, 18 insertions, 2 deletions

diff --git a/README.md b/README.md
index 4897dad..b1affeb 100644
--- a/README.md
+++ b/README.md
@@ -19,9 +19,25 @@ To build the interpreter:
 
 Binaries will be dumped in the "build" folder.
 
-## Status:
+## Status
 
     Parser: sorta works sometimes (subtext: AST generater is at least a little broken, but works for at least some use cases)
     Interpreter: broken
 
-With some of the code I've written, I'm kinda supprised that this even compiles.
\ No newline at end of file
+## Usage
+
+Once you have built the parser, it can be invoked in the build folder with `./parse`.  The cli options are as follows:
+
+	- `-writelevel <0, 1, or 2>` tells the parser at what stage it should stop parsing and output a file.
+		- `0` will output the list of tokens generated by the tokenizer.
+		- `1` will output the Abstract Syntax Tree as generated by the parser.
+		- `2` will output a "virtual program".  This is what the interpreter acts on.
+		- The default value is `1`
+
+	- `-in <file>` tells the parser what file to parse. This is the only manditory option.
+
+	- `-out <file>` tells the parser where to write the data.  The default is `out.tnt`.
+
+### Other notes
+
+With some of the code I've written, I'm kinda supprised that this even compiles.