Add 'README.update'.

README.update

@@ -0,0 +1,27 @@
+
+# ---
+# As user 'etherpad'
+# ---
+
+# Become user etherpad
+#
+# Note: its a system account, so you have to provide a shell
+#
+su - etherpad -s /bin/bash
+
+cd etherpad-lite
+
+
+# Update etherpad-lite sources
+#
+git ull origin
+
+
+# Initial run is needed here!
+#
+bin/run.sh
+
+# Exit from user etherpad
+#
+exit
+