realise automatic line change in table cell in readthedocs (#1213)

realise automatic line change in table cell in readthedocs

docs/_static/css/custom.css

+.wy-table-responsive table td, .wy-table-responsive table th{
+    white-space:normal
+}

docs/en_US/conf.py

@@ -192,3 +192,4 @@ def setup(app):
         'enable_auto_toc_tree': False,
             }, True)
     app.add_transform(AutoStructify)
+    app.add_stylesheet('../../../../_static/css/custom.css')

docs/zh_CN/conf.py

@@ -192,3 +192,4 @@ def setup(app):
         'enable_auto_toc_tree': False,
             }, True)
     app.add_transform(AutoStructify)
+    app.add_stylesheet('../../../../_static/css/custom.css')