importing CAESAR structure as agreed

docs/source/aspis.rst

 ASPIS
 ====
 
+.. toctree::
+   :caption: ASPIS documentation
+
+   aspis/webapp
+   ASPIS.py library<http://www.example.com/lib/ios/0.1.0/api/>
+
 .. autosummary::
    .. toctree:: generated
 

docs/source/aspis/webapp.rst

+Web Application
+--------
+
+
+Intro
+^^^^^^^
+
+A intro describing webapplication
+
+
+Functionalities
+^^^^^^^
+

docs/source/caesar.rst

@@ -3,9 +3,26 @@ CAESAR
 
 .. _intro:
 
+Intro
+-------------
 The Italian Space Agency (ASI) funds the CAESAR_ (Comprehensive spAce wEather Studies for the ASPIS prototype Realization) project.
 The project, officially started on December 21st and lasting 25 months, responds to a call created by the agreement between ASI and the National Institute of Astrophysics (INAF) aimed at carrying out "Study activities for the scientific community of Space Weather for population of the ASPIS scientific data center ".
 
+
+.. _description
+
+Description
+----------------
+**CAESAR** (Comprehensive Space Weather Studies for the ASPIS Prototype Realization) is a project supported by the Italian Space Agency and the National Institute of Astrophysics through the ASI-INAF n.2020-35-HH.0 agreement for the development of the ASPIS prototype of scientific data centre for Space Weather. 
+
+.. image:: assets/images/CAESAR_logo_fullsize_color.png
+  :height: 220
+  :alt: Alternative text
+
+Check out the :doc:`CAESAR` section for further information, including the details on :ref:`ASPIS` the project.
+
+To read about the latest news of the project please, visit the website `CAESAR project <https://caesar.iaps.inaf.it>`_
+
 .. _project
 
 The project