Merge pull request #1014 from terokorp/patch-1

Sometimes .tiff images has .tif extension

Author: StanleyGoldman

src/GitHub.Api/Resources/.gitattributes

@@ -32,6 +32,7 @@
 *.bmp filter=lfs diff=lfs merge=lfs -text
 *.tga filter=lfs diff=lfs merge=lfs -text
 *.tiff filter=lfs diff=lfs merge=lfs -text
+*.tif filter=lfs diff=lfs merge=lfs -text
 *.iff filter=lfs diff=lfs merge=lfs -text
 *.pict filter=lfs diff=lfs merge=lfs -text
 *.dds filter=lfs diff=lfs merge=lfs -text