Add  extension
@@ -61,7 +61,8 @@ extensions = ['sphinx.ext.autodoc',
'sphinx.ext.intersphinx',
'sphinx.ext.mathjax',
'sphinx.ext.napoleon',
- 'sphinx.ext.linkcode']
+ 'sphinx.ext.linkcode',
+ 'sphinx_copybutton']
try:
import sphinxcontrib.spelling # noqa
