restore requirements

Author: laixintao

requirements.txt

@@ -1,2 +1,24 @@
-sphinx_rtd_theme
-sphinx
+alabaster==0.7.10
+arrow==0.10.0
+Babel==2.5.0
+certifi==2017.7.27.1
+chardet==3.0.4
+click==6.7
+docutils==0.14
+git-ext==0.3.5
+idna==2.6
+imagesize==0.7.1
+Jinja2==2.9.6
+MarkupSafe==1.0
+Pygments==2.2.0
+python-dateutil==2.6.1
+pytz==2017.2
+PyYAML==3.12
+requests==2.18.4
+six==1.10.0
+snowballstemmer==1.2.1
+Sphinx==1.6.3
+sphinx-rtd-theme==0.2.4
+sphinxcontrib-websupport==1.0.1
+typing==3.6.2
+urllib3==1.22