[dts] [PATCH V1 2/2] doc: add the required python lib - threadpool

[LihongX Ma <lihongx.ma@intel.com>]

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As use the python default threadpool to maintain the pool of worker threads,
so the python lib threadpool is required when run dts.

Signed-off-by: LihongX Ma <lihongx.ma@intel.com>
---
 doc/dts_gsg/sys_reqs.rst | 1 +
 requirements.txt         | 1 +
 2 files changed, 2 insertions(+)

diff --git a/doc/dts_gsg/sys_reqs.rst b/doc/dts_gsg/sys_reqs.rst
index 77022e2..1e20b99 100644
--- a/doc/dts_gsg/sys_reqs.rst
+++ b/doc/dts_gsg/sys_reqs.rst
@@ -59,6 +59,7 @@ Python Module “pexpect”: this module provides API to automate interactive SS
 Python Module “docutils”: Docutils is a modular system for processing documentation into useful formats, such as HTML, XML, and LaTeX.
 Python Module “pcapy”: Pcapy is a Python extension module that interfaces with the libpcap packet capture library. Pcapy enables python scripts to capture packets on the network.
 Python Module “xlrd”: Xlrd is a Python module that extracts data from Excel spreadsheets.
+Python Module “threadpool”: Threadpool is a Python module that maintains a pool of worker threads to perform time consuming operations in parallel.
 
 Please see installation instruction as the following:
 
diff --git a/requirements.txt b/requirements.txt
index 59b3d8e..cb9f636 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,3 +37,4 @@ docutils
 pcapy
 xlrd
 scapy==2.4.3
+threadpool
-- 
2.7.4