diff --git a/README b/README
index ed32b4d4a25385175cbcf5867b90f586f40fa895..895c743249a926399f021938ef47077cd684883c 100644
--- a/README
+++ b/README
@@ -1,11 +1,12 @@
 * COMMENT -*- mode: org -*-
 #+Date: 2019-09-01
-Time-stamp: <2020-02-20>
+Time-stamp: <2020-02-21>
 
 * zero-el
 
 [[http://www.melpa.org/#/zero-input][file:http://www.melpa.org/packages/zero-input-badge.svg]]
 [[https://stable.melpa.org/#/zero-input][file:https://stable.melpa.org/packages/zero-input-badge.svg]]
+[[https://travis-ci.org/sylecn/zero-el][file:https://travis-ci.org/sylecn/zero-el.svg]]
 
 zero-el provides zero-input-pinyin, an Emacs pinyin input method for Chinese
 and zero-input-framework, which is an emacs Chinese input method framework.
diff --git a/operational b/operational
index f89fc26f75202d5336060661137f00f74a560933..96dbe953047fc21755623d7e98ffe554ee021d26 100644
--- a/operational
+++ b/operational
@@ -117,6 +117,8 @@ cd ~/lisp/elisp/zero/
   https://docs.travis-ci.com/user/installing-dependencies
   Customizing the Build - Travis CI
   https://docs.travis-ci.com/user/customizing-the-build#build-matrix
+  Testing Your Project on Multiple Operating Systems - Travis CI
+  https://docs.travis-ci.com/user/multi-os/
 
 * later                                                               :entry:
 * current                                                             :entry:
@@ -126,6 +128,9 @@ I don't know it should recommend or suggest.
 ** 2019-10-23 checkdoc and package-lint can't ignore some non-issues.
 I can't run them in git pre-commit hook.
 * done                                                                :entry:
+** 2020-02-21 org-mode, click badge should link to the pkg. not the image file.
+need to drop ?branch=master
+it works.
 ** 2020-02-20 integrate travis CI support.
 just run "make dist-check".