CanAirIO project to Products section (#117)

Co-authored-by: Paulus Schoutsen <paulus@home-assistant.io>

index.html

@@ -199,6 +199,19 @@
           >
         </p>
       </div>
+      <div class="project">
+        <a href="https://canair.io" class="logo" 
+          ><img src="static/logos/canairio.png" alt="CanAirIO logo"
+        /></a>
+        <h3>CanAirIO</h3>
+        <p>
+          Citizen science initiative for monitoring air quality. CanAirIO uses 
+          mobile and fixed sensors to measure air quality with smartphones and ESP32 devices.
+        </p>
+        <p>
+          <a href="https://canair.io/installer.html" target="_blank">Installation Website</a>
+        </p>
+      </div>
       <div class="project">
         <a href="https://esphome.io" class="logo"
           ><img src="static/logos/esphome.svg" alt="ESPHome logo"
@@ -211,7 +224,7 @@
         <p>
           <a href="https://esphome.io" target="_blank">Website</a>
         </p>
-      </div>
+      </div> 
       <h2 id="add-website">Adding ESP Web Tools to your website</h2>
       <p>
         To add this to your own website, create a manifest and add the button to