Write a more informative README file.

Author: jasonjgw

README.md

@@ -1,5 +1,5 @@
+# Inaccessibility of CAPTCHA: Alternatives to Visual Turing Tests on the Web
 
-# Specification 'captcha-accessibility'
+This is the repository for *Inaccessibility of CAPTCHA: Alternatives to Visual Turing Tests on the Web*, maintained by the [Research Questions Task Force](https://www.w3.org/WAI/APA/task-forces/research-questions/) of the [Accessible Platform Architectures Working Group](https://www.w3.org/WAI/APA/).
 
-This is the repository for captcha-accessibility. You're welcome to contribute! Let's make the Web rock our socks
-off!
+Contributions are welcome, including new GitHub issues or pull requests.