Update to reflect Boost moving to git and GitHub.

README

@@ -1,42 +1,32 @@
 Boost Endian library
 
 To experiment with the Endian library, various other boost libraries must be
-available. So you need to install a current version of Boost if you have not
-already done so.
+available. So you need to clone or install a current version of Boost if you
+have notalready done so.
 
 Boost.Endian is a header-only library, so there is no need to run a build
-for it, but these instructions run a bootstrap so that b2 is available.
-
-These instructions assume you want to use a fresh copy of boost. If you are
-going to use an existing copy, skip the svn export and bootstrap steps.
+for it. These instructions do assume bootstrap has been run so that b2 is
+in your path environmental variable.
 
 Windows
 =======
 
-    svn export --non-interactive --trust-server-cert ^
-      http://svn.boost.org/svn/boost/trunk boost-root
-    cd boost-root  
-    .\bootstrap
-    cd libs
+    cd boost-root\libs
     git clone git://github.com/Beman/endian.git
     cd ..\boost
     mklink /d endian ..\libs\endian\include\boost\endian
     cd ..\libs\endian\test
-    ..\..\..\b2
+    b2
   
 Others
 ======
 
-    svn export --non-interactive --trust-server-cert \
-      http://svn.boost.org/svn/boost/trunk boost-root
-    cd boost-root  
-    ./bootstrap.sh
-    cd libs
+    cd boost-root/libs  
     git clone git://github.com/Beman/endian.git
     cd ../boost
     ln -s ../libs/endian/include/boost/endian endian
     cd ../libs/endian/test
-    ../../../b2
+    b2
   
 ---------------------------
 Copyright Beman Dawes, 2013