Update README.md

Author: ericelliott

README.md

@@ -17,30 +17,6 @@ Bored? Want to hang out with friends, but not sure who's available? This app wil
 A simple scrum helper app to keep track of what people on your teams are working on, without the scrum meeting.
 
 
-### rtype
+### [Runtime rtype parser](https://github.com/ericelliott/rtype/issues/62) #advanced
 
-#### [Runtime rtype parser](https://github.com/ericelliott/rtype/issues/62) #advanced
-
-You'll learn about how programming language compilers parse source code, extract its meaning, and compile output from it.
-
-Write a function that takes an rtype interface description as a string and returns an object that can be used for runtime type checking.
-
-```js
-interface TypeChecker {
-  checkInputs: Predicate,
-  checkOutput: Predicate,
-  checkError: Predicate
-}
-
-parseSignature(signature: String) => TypeChecker
-```
-
-The target function will get wrapped by a utility such as [rfx](https://github.com/ericelliott/rfx). When the wrapper function gets called, it will pass inputs to `checkInputs()`. If it returns true, only then does the original function get called. When the function returns, its output will be similarly checked by `checkOutput()` before it gets returned to the original caller. If the function throws, the error will also be checked, by `checkError()`.
-
-Useful background:
-
-* [How to Build a Compiler](https://www.youtube.com/watch?v=Tar4WgAfMr4) Great video by James Kyle
-* [How to Build a Compiler source](https://github.com/thejameskyle/the-super-tiny-compiler) Source companion to the James Kyle video
-* The [Stanford Compilers course](https://www.coursera.org/course/compilers) (free online lectures)
-
-If you're curious about types, see the [introduction to types](https://class.coursera.org/compilers/lecture/45) from the Stanford Compiler course.
+Contribute to an open-source library to add dynamic type checking to JavaScript.