Add PythonItalia and DVision logos

Author: cplacani

.gitignore

@@ -59,4 +59,7 @@ target/
 # Other
 .idea/
 
-node_modules
+node_modules
+
+# Mac
+.DS_Store

assets/img/dvision_logo_2019_medium.png

@@ -183,9 +183,10 @@ <h2>Supported by</h2>
             </header>
             <div>
                 <ul class="sponsors-logo">
-                    <li><a href="https://www.pycon.it/" title="PyCon Italia"><img src="assets/img/pycon22.png"></a></li>
+                    <li><a href="http://www.python.it/comunita/" title="Python Italia"><img src="assets/img/python-italia-logo-black.png"></a></li>
                     <li><a href="https://djangogirls.org/en/pyconitalia/" title="Django Girls Italia"><img src="assets/img/django-girls-italy.png"></a></li>
                     <li><a href="https://linktr.ee/PythonBiellaGroup" title="Python Biella"><img src="assets/img/PythonBiellaGroup-no-backgrou.png"></a></li>
+                    <li><a href="https://www.dvisionlab.com/" title="D/VISION lab"><img src="assets/img/dvision_logo_2019_medium.png"></a></li>
                     <li><a href="https://www.codemotion.com" title="Codemotion"><img src="assets/img/logo_codemotion.png"></a></li>
                     <li><a href="https://www.craftedsoftware.org" title="Crafted Software"><img src="assets/img/CraftedSoftwareLogoFullCover400.jpeg"></a></li>
                     <li><a href="https://www.mirta.com" title="Mirta"><img src="assets/img/Logo-Mirta.png"></a></li>