feat: Add a badge indicating that the project is generated by x-pt/template

Author: pplmx

template/cuda/{{cookiecutter.project_slug}}/README.md

@@ -1,5 +1,6 @@
 # {{cookiecutter.project_slug}}
 
+[![Generated by](https://img.shields.io/badge/Generated%20by-x--pt%2Ftemplate-blue)](https://github.com/x-pt/template)
 [![CI](https://github.com/{{cookiecutter.__gh_slug}}/workflows/CI/badge.svg)](https://github.com/{{cookiecutter.__gh_slug}}/actions)
 [![Coverage Status](https://coveralls.io/repos/github/{{cookiecutter.__gh_slug}}/badge.svg?branch=main)](https://coveralls.io/github/{{cookiecutter.__gh_slug}}?branch=main)
 

template/cxx/{{cookiecutter.project_slug}}/README.md

@@ -1,5 +1,6 @@
 # {{cookiecutter.project_slug}}
 
+[![Generated by](https://img.shields.io/badge/Generated%20by-x--pt%2Ftemplate-blue)](https://github.com/x-pt/template)
 [![CI](https://github.com/{{cookiecutter.__gh_slug}}/workflows/CI/badge.svg)](https://github.com/{{cookiecutter.__gh_slug}}/actions)
 [![Coverage Status](https://coveralls.io/repos/github/{{cookiecutter.__gh_slug}}/badge.svg?branch=main)](https://coveralls.io/github/{{cookiecutter.__gh_slug}}?branch=main)
 

template/go/{{cookiecutter.project_slug}}/README.md

@@ -1,5 +1,6 @@
 # {{cookiecutter.project_slug}}
 
+[![Generated by](https://img.shields.io/badge/Generated%20by-x--pt%2Ftemplate-blue)](https://github.com/x-pt/template)
 [![CI](https://github.com/{{cookiecutter.__gh_slug}}/workflows/CI/badge.svg)](https://github.com/{{cookiecutter.__gh_slug}}/actions)
 [![Coverage Status](https://coveralls.io/repos/github/{{cookiecutter.__gh_slug}}/badge.svg?branch=main)](https://coveralls.io/github/{{cookiecutter.__gh_slug}}?branch=main)
 

template/py/{{cookiecutter.project_slug}}/README.md

@@ -1,5 +1,6 @@
 # {{cookiecutter.project_slug}}
 
+[![Generated by](https://img.shields.io/badge/Generated%20by-x--pt%2Ftemplate-blue)](https://github.com/x-pt/template)
 [![CI](https://github.com/{{cookiecutter.__gh_slug}}/workflows/CI/badge.svg)](https://github.com/{{cookiecutter.__gh_slug}}/actions)
 [![Coverage Status](https://coveralls.io/repos/github/{{cookiecutter.__gh_slug}}/badge.svg?branch=main)](https://coveralls.io/github/{{cookiecutter.__gh_slug}}?branch=main)
 [![PyPI version](https://badge.fury.io/py/{{cookiecutter.project_slug}}.svg)](https://badge.fury.io/py/{{cookiecutter.project_slug}})

template/rs/{{cookiecutter.project_slug}}/README.md

@@ -1,5 +1,6 @@
 # {{cookiecutter.project_slug}}
 
+[![Generated by](https://img.shields.io/badge/Generated%20by-x--pt%2Ftemplate-blue)](https://github.com/x-pt/template)
 [![CI](https://github.com/{{cookiecutter.__gh_slug}}/workflows/CI/badge.svg)](https://github.com/{{cookiecutter.__gh_slug}}/actions)
 [![Crates.io](https://img.shields.io/crates/v/{{cookiecutter.project_slug}}.svg)](https://crates.io/crates/{{cookiecutter.project_slug}})
 [![Documentation](https://docs.rs/{{cookiecutter.project_slug}}/badge.svg)](https://docs.rs/{{cookiecutter.project_slug}})

template/ts/{{cookiecutter.project_slug}}/README.md

@@ -1,5 +1,6 @@
 # {{cookiecutter.project_slug}}
 
+[![Generated by](https://img.shields.io/badge/Generated%20by-x--pt%2Ftemplate-blue)](https://github.com/x-pt/template)
 [![CI](https://github.com/{{cookiecutter.__gh_slug}}/workflows/CI/badge.svg)](https://github.com/{{cookiecutter.__gh_slug}}/actions)
 [![Coverage Status](https://coveralls.io/repos/github/{{cookiecutter.__gh_slug}}/badge.svg?branch=main)](https://coveralls.io/github/{{cookiecutter.__gh_slug}}?branch=main)
 [![NPM version](https://badge.fury.io/js/{{cookiecutter.project_slug}}.svg)](https://badge.fury.io/js/{{cookiecutter.project_slug}})