[spp] [PATCH 3/3] docs: add description for python 3 support

[ogawa.yasufumi@lab.ntt.co.jp]

From: Yasufumi Ogawa <ogawa.yasufumi@lab.ntt.co.jp>

Add description to explain that SPP controller supports Python 3 while
keeping compatibility for Python 2.

Signed-off-by: Yasufumi Ogawa <ogawa.yasufumi@lab.ntt.co.jp>
---
 docs/guides/setup/getting_started.rst | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/docs/guides/setup/getting_started.rst b/docs/guides/setup/getting_started.rst
index 04df517..75dc68d 100644
--- a/docs/guides/setup/getting_started.rst
+++ b/docs/guides/setup/getting_started.rst
@@ -120,6 +120,9 @@ Refer to `DPDK documentation
 For Linux, see `Getting Started Guide for Linux
 <http://www.dpdk.org/doc/guides/linux_gsg/index.html>`_ .
 
+DPDK
+~~~~
+
 First, download and compile DPDK in any directory.
 Compiling DPDK takes a few minutes.
 
@@ -132,6 +135,9 @@ Compiling DPDK takes a few minutes.
     $ export RTE_TARGET=x86_64-native-linuxapp-gcc  # depends on your env
     $ make install T=$RTE_TARGET
 
+SPP
+~~~
+
 Then, download and compile SPP in any directory.
 
 .. code-block:: console
@@ -142,6 +148,13 @@ Then, download and compile SPP in any directory.
     $ make  # Confirm that $RTE_SDK and $RTE_TARGET are set
 
 
+Python 2 or 3 ?
+~~~~~~~~~~~~~~~
+
+You need to install Python for using usertools of DPDK or SPP controller.
+DPDK and SPP support both of Python2 and 3.
+
+
 Binding Network Ports to DPDK
 -----------------------------
 
@@ -238,8 +251,8 @@ cannot find it by using ``ifconfig`` or ``ip``.
     ....
 
 
-Run DPDK Sample Application
----------------------------
+Confirm DPDK is setup properly
+------------------------------
 
 You had better to run DPDK sample application before SPP
 as checking DPDK is setup properly.
-- 
2.17.0