added intersphinx for docs

Author: harisankar95

docs/conf.py

@@ -43,6 +43,7 @@
     "sphinx-prompt",  # for prompt
     "notfound.extension",  # for 404 page
     "myst_parser",  # for markdown
+    "sphinx.ext.intersphinx",  # for intersphinx
 ]
 
 templates_path = ["_templates"]
@@ -137,6 +138,13 @@ def setup(app):
 # napoleon
 napoleon_numpy_docstring = True
 
+# intersphinx
+intersphinx_mapping = {
+    "python": ("https://docs.python.org/3", None),
+    "numpy": ("https://numpy.org/doc/stable/", None),
+    "plotly": ("https://plotly.com/python-api-reference/", None),
+}
+
 # todo-section
 todo_include_todos = False