fixed sphinx warnings

diff --git a/doc/source/conf.py b/doc/source/conf.py
index e0a2bd17c953cc77b40f2c78a23009201f61c180..71de7639ed6d388a6a84a44deccfd29e46058d33 100644 (file)
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -76,7 +76,7 @@ release = VERSION
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+#language = None
 
 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:
@@ -438,7 +438,7 @@ epub_exclude_files = ['search.html']
 
 
 # Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {'https://docs.python.org/': None}
+intersphinx_mapping = {'python': ('https://docs.python.org/3', None)}
 
 # autodoc config
 autodoc_member_order = 'bysource'