Add latest blog post and company logo

Author: SylvainCorlay

_config.yml

@@ -5,6 +5,13 @@ copyright:
 
 blog:
 
+  - url: https://blog.jupyter.org/a-theme-editor-for-jupyterlab-8f08ab62894d
+    title: A theme editor for JupyterLab
+    image: https://miro.medium.com/v2/resize:fit:4800/format:webp/0*5OLBiA8tmTbD1Nan.png
+    summary: To lower the bar for customizing JupyterLab we created a new tool providing a simple interface for tuning the JupyterLab appearance interactively.
+    date: June 19th, 2023
+    authors: Florence Haudin
+
   - url: https://blog.jupyter.org/collaborative-cad-in-jupyterlab-8eb9e8f81f0
     title: Collaborative CAD in JupyterLab
     image: https://miro.medium.com/v2/resize:fit:1400/format:webp/1*9r3Xz-v5wyuz8aAKY2WV-A.png

img/companies/deshaw.png

@@ -271,6 +271,13 @@ <h2>We have worked with ...</h2>
                                 </a>
                             </div>
                         </div>
+                        <div class="col-md-4">
+                            <div class="bloc-company">
+                                <a href="https://www.deshaw.com/">
+                                    <img src="img/companies/deshaw.png" class="img-responsive" >
+                                </a>
+                            </div>
+                        </div>
                     </div>
                 </div>
             </div>