Add some type file to ignore list

	modified:   .gitignore

diff --git a/.gitignore b/.gitignore
index 0331bbb..58b07a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,9 @@
 *.exe
 *.out
 *.app
+
+# binary
+*.bin
+
+# image
+*.img