typo fix in the conda package name

akhmerov · akhmerov · commit c8cbf45f3dfd · 2019-07-09T22:48:42.000+02:00
diff --git a/doc/source/index.rst b/doc/source/index.rst
@@ -23,7 +23,7 @@ or conda:
 
 .. code-block:: bash
 
-  conda install jupyter-sphinx
+  conda install jupyter_sphinx
 
 Enabling the extension
 ----------------------
