* updated example dir and notebook

* Update example1.ipynb

* Changed GoogleColab link

* UPdated Sphinx documentation

New Index.rst page,
Old index.rst page became corese.rst.
Added new pages: python_api/api_root.rst with autogenerated API doc.
Added python_api/bridges.rst page
The example1.ipynb notebook is rendered as a uset_guide.
INSTALL.md is rendered as an installation page

* Update pyproject.toml

Added the installation of the packages from the docs/requirements.txt in case a new extension is added.

This reverts commit 9324b1a.

* Updated Sphinx documentation

New Index.rst page,
Old index.rst page became corese.rst.
Added new pages: python_api/api_root.rst with autogenerated API doc.
Added python_api/bridges.rst page
The example1.ipynb notebook is rendered as a uset_guide.
INSTALL.md is rendered as an installation page

* Updated pyproject.toml

* Moved VIESION.txt to src/pycorese to update the version only in one place.

* Minor fixes and updates

This reverts commit 85d2fd0, reversing
changes made to 13ab5bc.

readme = { file = "README.md", content-type = "text/markdown" }