README.md: Add link to docs

Author: mborgerson

README.md

@@ -4,11 +4,14 @@ pypcode
 
 Machine code disassembly and IR translation library for Python using the
 excellent [SLEIGH](https://ghidra.re/courses/languages/html/sleigh.html)
-library from the [Ghidra](https://ghidra-sre.org/) framework (version 10.2.2).
+library from the [Ghidra](https://ghidra-sre.org/) framework.
 
 This library was created primarily for use with [angr](http://angr.io), which
 provides analyses and symbolic execution of p-code.
 
+Documentation covering how to install and use pypcode is
+[available here](https://api.angr.io/projects/pypcode/en/stable/).
+
 Quick Start
 -----------
 This package can be installed on Linux, macOS, and Windows platforms for recent