docs: adding ndnSIM best practices section

Change-Id: I57afb3386cce700251bdfd6b53f00b22eafdf1bc
diff --git a/docs/source/tutorial.rst b/docs/source/tutorial.rst
index 05a5ace..69cd53d 100644
--- a/docs/source/tutorial.rst
+++ b/docs/source/tutorial.rst
@@ -22,6 +22,7 @@
     getting-started
     faq
     examples
+    best-practices
     helpers
     cs
     fw