Use SIGQUIT instead of SIGINT

refs: #3870

Change-Id: I915d9422d56a441b351bb9ab38a0c8377e1da34f
diff --git a/docs/GETTING-STARTED.md b/docs/GETTING-STARTED.md
index 8368f13..b4c1f18 100644
--- a/docs/GETTING-STARTED.md
+++ b/docs/GETTING-STARTED.md
@@ -44,6 +44,10 @@
 
     mini-ndn> quit
 
+Another option to quit Mini-NDN is sending a SIGQUIT (ctrl+\). SIGINT (ctrl+c)
+is reserved for the purpose of stopping applications initiated on the minindn command
+line.
+
 For a more in depth explanation of the CLI, please see the
 [Mininet Walkthrough](http://mininet.org/walkthrough/).