helper file for me to stay up-to-date with master

diff --git a/keyboards/satan/keymaps/iso_split_rshift/updatemerge.sh b/keyboards/satan/keymaps/iso_split_rshift/updatemerge.sh
new file mode 100755 (executable)
index 0000000..d17ec76
--- /dev/null
+++ b/keyboards/satan/keymaps/iso_split_rshift/updatemerge.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+git checkout iso_split_rshift # gets you "on branch dmgr2"
+git fetch origin              # gets you up to date with origin
+git merge origin/master