Update README (#129)

Author: davidbrochart

README.md

@@ -1,15 +1,4 @@
 [![Build Status](https://github.com/davidbrochart/jpterm/workflows/test/badge.svg)](https://github.com/davidbrochart/jpterm/actions)
-[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
-[![Hatch project](https://img.shields.io/badge/%F0%9F%A5%9A-Hatch-4051b5.svg)](https://github.com/pypa/hatch)
-
-<p align="center">
-<a href="https://polar.sh/davidbrochart">
-<picture>
-  <source media="(prefers-color-scheme: dark)" srcset="https://polar.sh/embed/subscribe.svg?org=davidbrochart&darkmode=1">
-  <img alt="Subscribe" src="https://polar.sh/embed/subscribe.svg?org=davidbrochart">
-</picture>
-</a>
-</p>
 
 # jpterm