README.md in argon2-1.1.1 vs README.md in argon2-1.1.2

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@@ -78,9 +78,11 @@
 
 The default installation workflow has caused issues with a number of gems under the latest OSX. There is some excellent documentation on the issue and some workarounds in the [Jekyll Documentation](http://jekyllrb.com/docs/troubleshooting/#jekyll-amp-mac-os-x-1011). With this in mind, OSX is a fully supported OS.
 
 Windows is not. Nobody anywhere has the resources to support Ruby FFI code on Windows.
 
+grsec introduces certain challenges. Please see [documentation here](https://github.com/technion/ruby-argon2/issues/15).
+
 ## RubyDocs documentation
 
 [The usual URL](http://www.rubydoc.info/gems/argon2) will provide detailed documentation.
 
 ## FAQ