Update README

README.md

@@ -23,7 +23,9 @@ This is an example file
 # Authors
 
 * Nate Vack
-* Someone Else
+* Vendor Packages
+    * docopt
+    * CommonMark-py
 
 # Versions
 
@@ -41,7 +43,7 @@ will translate to the JSON:
 ```
 {
   "Description": "This is an example file",
-  "Authors": ["Nate Vack", "Someone Else"],
+  "Authors": ["Nate Vack", "Vendor Packages", ["docopt", "CommonMark-py"]],
   "Versions": {
     "Version 1": "Here's something about Version 1; I said \"Hooray!\"",
     "Version 2": "Here's something about Version 2"
@@ -49,3 +51,33 @@ will translate to the JSON:
 }
 ```
 
+## `md_to_json`
+
+```
+Translate markdown into JSON.
+
+Usage:
+  md_to_json [options] <markdown_file>
+  md_to_json -h | --help
+
+Options:
+  -h --help     Show this screen
+  --version     Print version number
+  -o <file>     Save output to a file instead of stdout
+  -i <val>      Indent nested JSON by this amount. Use a negative number for
+                most compact possible JSON. the [default: 2]
+```
+
+This translates a markdown document into JSON as described in the example above.
+
+## Credits
+
+`markdown_to_json` was written by Nate Vack <njvack@freshforever.net> at the Center for Healthy Minds at the University of Wisconsin–Madison.
+
+This tool ships a few really excellent tools in its `vendor` directory:
+
+[docopt](https://github.com/docopt/docopt) is copyright (c) 2012 Vladimir Keleshev, <vladimir@keleshev.com>
+
+[CommonMark-py](https://github.com/rolandshoemaker/CommonMark-py) is copyright Copyright (c) 2014, Bibek Kafle and Roland Shoemaker
+
+The packaged ordereddict implementation is copyright (c) 2009 Raymond Hettinger