Ensure line endings behave nicely on Windows.

WillGreen · WillGreen · commit f195d259c67d · 2020-01-10T11:00:49.000Z
diff --git a/.gitattributes b/.gitattributes
@@ -0,0 +1,3 @@
+* text=auto eol=lf
+*.{cmd,[cC][mM][dD]} text eol=crlf
+*.{bat,[bB][aA][tT]} text eol=crlf
