Add sensirion and terminal tech logos and titles

Author: jamesmunns

static/images/user-logos/sensirion.png

@@ -11,14 +11,14 @@
       <div class="testimonial row">
         <div class="four columns">
           <a href="https://www.sensirion.com/">
-            <img alt="Sensirion logo" src="https://pbs.twimg.com/profile_images/704935237713793024/Rs1Bvdef_400x400.jpg"/>
+            <img alt="Sensirion logo" src="/static/images/user-logos/sensirion.png"/>
           </a>
         </div>
         <div class="eight columns" id="Sensirion-testimonial">
           <blockquote>
             At Sensirion we recently used Rust to create an embedded demonstrator for Sensirion's <a href="https://sensirion-automotive.com/products#PM2_5">Particulate Matter Sensor</a>. Due to the easy cross-compilation and the availability of many high quality crates on crates.io <b>we quickly ended up with a fast and robust demonstrator.</b>
           </blockquote>
-          <p class="attribution">- Raphael Nestler, Sensirion</p>
+          <p class="attribution">- Raphael Nestler, Software Engineer, Sensirion</p>
         </div>
       </div>
 
@@ -57,11 +57,11 @@
           <blockquote>
             <b>We think it's really cool that we can use a modern nice language in the embedded space</b> where usually there's no alternative to C/C++
           </blockquote>
-          <p class="attribution">- Aleksei Arbuzov, Terminal Technologies</p>
+          <p class="attribution">- Aleksei Arbuzov, Senior Software Engineer, Terminal Technologies</p>
         </div>
         <div class="four columns">
           <a href="http://www.termt.eu/">
-            <img alt="49nord logo" src="https://i0.wp.com/embeddedsecuritynews.com/wp-content/uploads/2017/02/terminal-technologies-logo.png"/>
+            <img alt="Terminal Technologies logo" src="/static/images/user-logos/terminal-technologies.png"/>
           </a>
         </div>
       </div>