added binary attirbutes for binary files

Author: rlabbe

.gitattributes

@@ -1,4 +1,24 @@
 # Auto detect text files and perform LF normalization
 * text eol=lf
 *.py eol=lf
-*.ipynb eol=lf
+*.ipynb eol=lf
+
+*.png binary
+*.jpg binary
+*.jpeg binary
+*.gif binary
+*.ico binary
+*.mov binary
+*.mp4 binary
+*.mp3 binary
+*.flv binary
+*.fla binary
+*.swf binary
+*.gz binary
+*.zip binary
+*.7z binary
+*.ttf binary
+*.eot binary
+*.woff binary
+*.pyc binary
+*.pdf binary