[PATCH] README: Add the necessary method about elfutils

[Jinyang He]

In dwarf_info.c: 20, #include <elfutils/libdwfl.h>

Signed-off-by: Jinyang He <hejinyang at loongson.cn>
---
 README | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README b/README
index f83717f..f69fe43 100644
--- a/README
+++ b/README
@@ -18,6 +18,7 @@
      #
      # mkdir /usr/local/include/elfutils/
      # cp ./libdw/libdw.h   /usr/local/include/elfutils/libdw.h
+     # cp ./libdwfl/libdwfl.h /usr/local/include/elfutils/libdwfl.h
      # cp ./libdw/dwarf.h   /usr/local/include/dwarf.h
      # cp ./libelf/libelf.h /usr/local/include/libelf.h
      # cp ./libelf/gelf.h   /usr/local/include/gelf.h
-- 
2.1.0