added more badges (#1282)

Author: jaseemjaskp

README.md

@@ -7,7 +7,10 @@
 
 ##
 
+![Python Version from PEP 621 TOML](https://img.shields.io/python/required-version-toml?tomlFilePath=https%3A%2F%2Fraw.githubusercontent.com%2FZipstack%2Funstract%2Frefs%2Fheads%2Fmain%2Fpyproject.toml)
 [![uv](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/uv/main/assets/badge/v0.json)](https://github.com/astral-sh/uv)
+![GitHub License](https://img.shields.io/github/license/Zipstack/unstract)
+![Docker Pulls](https://img.shields.io/docker/pulls/unstract/backend)
 [![CLA assistant](https://cla-assistant.io/readme/badge/Zipstack/unstract)](https://cla-assistant.io/Zipstack/unstract)
 [![pre-commit.ci status](https://results.pre-commit.ci/badge/github/Zipstack/unstract/main.svg)](https://results.pre-commit.ci/latest/github/Zipstack/unstract/main)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=Zipstack_unstract&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=Zipstack_unstract)