Update image filename and link

Author: fabaff

source/_includes/custom/grid_item_left.html

@@ -2,8 +2,8 @@ <h2 class="title">Observe</h2>
 <hr>
 <p>Home Assistant will track the state of all the devices in your home, so you don't have to.</p>
 <div class='supported-brands clearfix'>
-  <a href='/components/thermostat.nest/'>
-    <img src='/images/supported_brands/nest_thermostat.png' />
+  <a href='/components/climate.nest/'>
+    <img src='/images/supported_brands/nest.png' />
   </a>
   <a href='/components/ifttt/'>
     <img src='/images/supported_brands/ifttt.png' />