Add .gitattributes file.

Author: Chiel ten Brinke

.gitattributes

@@ -0,0 +1,7 @@
+# Set the default behavior, in case people don't have core.autocrlf set.
+* text=auto
+
+# Explicitly declare text files you want to always be normalized and converted
+# to native line endings on checkout.
+*.vim text
+*.md text