RELEASE-NOTES -> RELEASE-NOTES.md

Makefile.am

@@ -26,7 +26,7 @@ MSVCFILES = msvc_ver.inc buildconf.bat
 
 # adig and ahost are just sample programs and thus not mentioned with the
 # regular sources and headers
-EXTRA_DIST = AUTHORS CHANGES README.cares $(man_MANS) RELEASE-NOTES	\
+EXTRA_DIST = AUTHORS CHANGES README.cares $(man_MANS) RELEASE-NOTES.md	\
  c-ares-config.cmake.in libcares.pc.cmake libcares.pc.in buildconf get_ver.awk \
  maketgz TODO README.msvc $(MSVCFILES) INSTALL.md README.md LICENSE.md \
  CMakeLists.txt Makefile.dj Makefile.m32 Makefile.netware Makefile.msvc \