add a .gitattributes file

- this should stop problems such as mthom/scryer-prolog#1491
  by specifying the line ending
  as this should take precedence over the global config

diff --git a/.gitattributes b/.gitattributes
new file mode 100644 (file)
index 0000000..a1bf019
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,4 @@
+*.png binary
+*.pl text eol=lf
+*.rs text eol=lf diff=rust
+*.md text eol=lf diff=markdown