docs: give nfdc examples

refs #4234

Change-Id: Ib8102edfc64f2cc8e822335baaa288b0cec3cf42
diff --git a/docs/manpages/nfdc-strategy.rst b/docs/manpages/nfdc-strategy.rst
index 6a1e592..20e33f1 100644
--- a/docs/manpages/nfdc-strategy.rst
+++ b/docs/manpages/nfdc-strategy.rst
@@ -44,7 +44,6 @@
 
 EXIT CODES
 ----------
-
 0: Success
 
 1: An unspecified error occurred
@@ -53,6 +52,23 @@
 
 7: Strategy not found (**nfdc strategy set** only)
 
+EXAMPLES
+--------
+nfdc strategy list
+    List all configured strategy choices.
+
+nfdc strategy show prefix /localhost/ping/1
+    Identify which strategy will handle Interests named "/localhost/ping/1".
+
+nfdc strategy set prefix / strategy /localhost/nfd/strategy/best-route
+    Set the default strategy to best-route, latest version.
+
+nfdc strategy set prefix /ndn strategy /localhost/nfd/strategy/multicast/%FD%01
+    Set the strategy of the "/ndn" prefix to multicast, version 1.
+
+nfdc strategy unset prefix /ndn
+    Clear the strategy choice for the "/ndn" prefix.
+
 SEE ALSO
 --------
 nfd(1), nfdc(1)