THRIFT-2407 use markdown (rename README => README.md)
Patch: Roger Meier
diff --git a/compiler/cpp/Makefile.am b/compiler/cpp/Makefile.am
index 4c0e71d..95b78ee 100644
--- a/compiler/cpp/Makefile.am
+++ b/compiler/cpp/Makefile.am
@@ -106,7 +106,7 @@
              compiler.sln \
              compiler.vcxproj \
              compiler.vcxproj.filters \
-             README_Windows.txt
+             README_Windows.md
 
 EXTRA_DIST = \
              $(WINDOWS_DIST)