faq: stop advertising PyLink as cross platform

Windows support has not been tested for a long time, and there doesn't seem to be much developer/user interest in this.

README.md

@@ -27,11 +27,16 @@ You can also find support via our IRC channels: `#PyLink @ irc.overdrivenetworks
 
 ## Installation
 
+### Pre-requisites
+* CPython 3.4 or above (other intepreters are untested and unsupported)
+* A Unix-like operating system: PyLink is actively developed on Linux only, so we cannot guarantee that things will work properly on other systems.
+
+If you are a developer and want to help make PyLink more portable, patches are highly appreciated. Talk to us!
+
 ### Installing from source
 
 1) First, make sure the following dependencies are met:
 
-    * Python 3.4+
     * Setuptools (`pip3 install setuptools`)
     * PyYAML (`pip3 install pyyaml`)
     * ircmatch (`pip3 install ircmatch`)

docs/faq.md

@@ -51,7 +51,6 @@ InterJanus-style links between PyLink daemons are not supported yet; see https:/
 PyLink provides, in no particular order:
 - More complete support for modern IRCds (UnrealIRCd 4.x, InspIRCd 2.0, charybdis 4, Nefarious IRCu, etc.).
 - A flexible, maintainable codebase extensible beyond Relay.
-- Cross platform functionality (*nix, Windows, and probably others too).
 - Proper protocol negotiation leading to fewer SQUIT/DoS possibilities:
     - Better support for channel modes such as +fjMOR, etc.
     - Proper support for nick length limits with relayed users.