Update documentation and CI/CD workflows for PyPI publishing (#24)

* chores: fix mkdocs to avoid upgrade to version 2.0

* docs: update all the documentation with current implementation

* cicd: add workflow for publishing in pypi

* cicd: add workflow to testability in TestPyPI

* cicd: remove pipy environment to keep zero warnings off in this release

* fix: fix README to render banner in TestPyPi

Author: ecarrenolozano

README.md

@@ -1,10 +1,8 @@
-![project-banner](./docs/assets/project-banner-readme.png)
-
-[![Tests](https://img.shields.io/github/actions/workflow/status/saezlab/pkg_infra/test.yml?branch=master)](https://github.com/saezlab/pkg_infra/actions/workflows/test.yml)
+[![Tests](https://img.shields.io/github/actions/workflow/status/saezlab/pkg_infra/ci-testing-unit.yml?branch=main)](https://github.com/saezlab/pkg_infra/actions/workflows/ci-testing-unit.yml)
 [![Docs](https://img.shields.io/badge/docs-MkDocs-blue)](https://saezlab.github.io/pkg_infra/)
 ![Pre-commit](https://img.shields.io/badge/pre--commit-enabled-brightgreen?logo=pre-commit)
-![PyPI](https://img.shields.io/pypi/v/pkg_infra)
-![Python](https://img.shields.io/pypi/pyversions/pkg_infra)
+[![PyPI](https://img.shields.io/pypi/v/pkg_infra)](https://pypi.org/project/pkg_infra/)
+[![Python](https://img.shields.io/pypi/pyversions/pkg_infra)](https://pypi.org/project/pkg_infra/)
 ![License](https://img.shields.io/github/license/saezlab/pkg_infra)
 ![Issues](https://img.shields.io/github/issues/saezlab/pkg_infra)
 ![Last Commit](https://img.shields.io/github/last-commit/saezlab/pkg_infra)
@@ -17,6 +15,8 @@ ad hoc across projects:
 - Layered YAML configuration with validation and predictable precedence
 - Centralized logging based on Python's standard `logging` module
 
+![project-banner](https://github.com/saezlab/pkg_infra/raw/main/docs/assets/project-banner-readme.png)
+
 ## What it includes
 
 - `pkg_infra.get_session(...)` as the main entrypoint for initializing runtime