add badges and a missed requirement file to make doc-builds pass.

README.md

@@ -7,6 +7,11 @@
 
 ![Python Versions](https://img.shields.io/badge/Python--versions-3.7%20%7C%203.8%20%7C%203.9-brightgreen)
 [![Build](https://github.com/LineaLabs/lineapy/actions/workflows/python-app.yml/badge.svg)](https://github.com/LineaLabs/lineapy/actions/workflows/python-app.yml)
+[![Documentation Status](https://readthedocs.com/projects/lineapy-org-lineapy/badge/?version=latest&token=925cd1d5eaedb7cc60508c9cce377574da748a7d6c050bb2c3de2a360a9f4f20)](https://docs.lineapy.org/en/latest/?badge=latest)
+[![Slack](https://img.shields.io/badge/slack-@lineapy--community-CF0E5B.svg?logo=slack&logoColor=white&labelColor=3F0E40)](https://join.slack.com/t/lineacommunity/shared_invite/zt-172ddmbon-vAl4Ca8LwcnTP99UTWLVRg)
+[![License](https://img.shields.io/badge/license-Apache%202-brightgreen.svg?logo=apache)](https://github.com/LineaLabs/lineapy/blob/main/LICENSE.txt)
+[![PyPi](https://img.shields.io/pypi/v/lineapy.svg?logo=pypi&logoColor=white)](https://pypi.org/project/lineapy/)
+
 
 Supercharge your data science workflow with LineaPy! Just two lines of code captures, analyzes,
 and transforms Python code to extract production data pipelines in minutes.

requirements.txt

@@ -78,6 +78,7 @@ nbclassic==0.3.7
 nbclient==0.6.0
 nbconvert==6.5.0
 nbformat==5.3.0
+nbsphinx==0.8.8
 nbval==0.9.6
 nest-asyncio==1.5.5
 networkx==2.6.3

setup.py

@@ -101,6 +101,7 @@ def version(path):
             "pre-commit",
             "SQLAlchemy[mypy]>=1.4.0",
             "sphinx",
+            "nbsphinx",
             "sphinx_rtd_theme",
             "types-PyYAML",
             "types-requests",  # to satisfy mypy