Update demo gif url.

quark-zju · quark-zju · commit 6946d4ade852 · 2014-02-10T02:48:54.000+08:00
diff --git a/README.md b/README.md
@@ -1,6 +1,6 @@
 Automatically insert or delete `#include`s for C++ code in vim.
 
-![vim-cpp-auto-include demo](/quark-zju/vim-cpp-auto-include/raw/master/demo/vim-cpp-auto-include-demo.gif)
+![vim-cpp-auto-include demo](https://raw.github.com/quark-zju/vim-cpp-auto-include/master/demo/vim-cpp-auto-include-demo.gif)
 
 Note
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