Add status note to README

README.md

@@ -30,3 +30,9 @@ To deploy your code you need to expose it to Screeps from the exported CommonJS
 Module documentation is [here](https://github.com/nicholaskariniemi/purescript-screeps/tree/master/docs).
 
 In most cases you will import `Screeps`, which contains all of the major types, and then one or more of the other modules. Most modules correspond directly to a Screeps API class/object.
+
+## Status
+
+* PathFinder API not implemented
+* Market API not implemented
+* More advanced options and parsing of error types in certain cases not implemented