Maint: Added a script for pushing to both public repos

diff --git a/maint/push-to-public b/maint/push-to-public
new file mode 100755 (executable)
index 0000000..d1ab4f3
--- /dev/null
+++ b/maint/push-to-public
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -e
+git push public
+git push github