.gitignore in xlsx_writer-0.1.2 vs .gitignore in xlsx_writer-0.2.0

@@ -8,6 +8,8 @@
 *.diff
 *.xmlx
 notes.txt
 *.\#*
 *.rbc
-pkg
\ No newline at end of file
+pkg
+.DS_Store
+Gemfile.lock