Add spiel about there being a comment at the top of Makefile

[originally from svn r291]

diff --git a/README b/README
index 44f650a48108e62d06632c84c6f991ca1b5de862..7a52661773058d3dc46a334af9ba68c1e107fc62 100644 (file)
--- a/README
+++ b/README
@@ -2,7 +2,10 @@ This is the README for PuTTY, a free Win32 Telnet and SSH client.
 
 The provided Makefile is for MS Visual C++ systems. Type `nmake' to
 build both putty.exe (the main program) and pscp.exe (an SCP
-client).
+client). The comment at the top of the Makefile gives extra build
+options you can use to build in limited Win32s compatibility, a hack
+to pass SSH through some types of firewall, and `official' version
+numbers.
 
 Setting up a project file in the Visual C++ IDE sometimes fails to
 work. In particular, Visual Studio 6 falls over on the odd macro