Update installation guide

docs/installation.rst

@@ -1,19 +1,67 @@
-.. _installation_setup:
+.. _installation:
 
-Installation and setup
-======================
+============
+Installation
+============
 
-.. _basic_installation:
+Requirements
+------------
 
-Basic installation
+``peakdet`` requires python 3.6 or above, as well as the modules:
+
+.. literalinclude:: ../setup.cfg
+   :lines: 28-30
+   :dedent: 4
+
+Linux and mac installation
+--------------------------
+The most convenient option is to use ``pip``, as it allows you to automatically download and install the package from `PyPI repository <https://pypi.org/project/peakdet/>`_ and facilitates upgrading or uninstalling it.
+
+Install with ``pip``
+^^^^^^^^^^^^^^^^^^^^
+
+.. note::
+    The following instructions are provided assuming that python 3 is **not** your default version of python.
+    If it is, you might need to use ``pip`` instead of ``pip3``, although some OSs do adopt ``pip3`` anyway.
+    If you want to check, type ``python --version`` in a terminal.
+
+To install ``peakdet`` along with the basic required modules just run::
+
+    pip3 install peakdet
+
+You can now proceed to check your installation and start using ``peakdet``!
+
+Check your installation!
+^^^^^^^^^^^^^^^^^^^^^^^^
+
+Through the terminal, type the command::
+
+    pip show peakdet
+
+Through python script, type the commands::
+
+    import peakdet
+    print(peakdet.__version__)
+
+If your output is: ``0.2.0rc1`` or similar, ``peakdet`` is ready to be used.
+
+Windows installation
 --------------------
 
-This package requires Python >= 3.6. Assuming you have the correct version of
-Python installed, you can install ``peakdet`` by opening a terminal and running
-the following:
+First of all let's check you have python installed. Open a windows power shell window in **admin mode** and type::
+
+    python --version
+
+In case you don't have it, either install it by clicking on the link for the *Latest python 3 Release* `here <https://www.python.org/downloads/windows/>`_ or type the command::
+
+    python
+
+It will redirect you to the windows store python install (in the creation of this tutorial the newest version of python was 3.11).
+
+.. warning::
+    ``peakdet`` supports Python 3.6 and later versions. We can't guarantee it will work if you use python 2.
 
-.. code-block:: bash
+Once python is installed, you can follow the instructions to install ``peakdet`` reported `above <#install-with-pip>`_
 
-   git clone https://github.com/physiopy/peakdet.git
-   cd peakdet
-   python setup.py install
+.. note::
+    Remember to open a terminal in **admin mode** to install libraries!