Add alt attributes for all images

index.html

@@ -45,19 +45,19 @@
           <li>
             <a href="/" class="bg-accent-bright"
               ><h3>Design</h3>
-              <img src="./assets/design_icon.svg" alt=""
+              <img src="./assets/design_icon.svg" alt="Design Icon"
             /></a>
           </li>
           <li>
             <a href="/" class="bg-accent-reg"
               ><h3>Strategie</h3>
-              <img src="./assets/strategy_icon.svg" alt=""
+              <img src="./assets/strategy_icon.svg" alt="Strategy Icon"
             /></a>
           </li>
           <li>
             <a href="/" class="bg-accent-dark"
               ><h3>Consulting</h3>
-              <img src="./assets/consulting_icon.svg" alt=""
+              <img src="./assets/consulting_icon.svg" alt="Consulting Icon"
             /></a>
           </li>
         </ul>
@@ -84,7 +84,10 @@
         <ul>
           <li class="tina-ubuntu">
             <div class="image-wrapper">
-              <img src="./assets/img_ref2.jpg" alt="" />
+              <img
+                src="./assets/img_ref2.jpg"
+                alt="Tina Ubuntu, CEO Headless Ltd."
+              />
             </div>
             <blockquote>
               Alex' Redesign hat maßgeblich mitgeholfen, unseren Umsatz um 20%
@@ -94,7 +97,10 @@
           </li>
           <li class="tom-herzog">
             <div class="image-wrapper">
-              <img src="./assets/img_ref1.jpg" alt="" />
+              <img
+                src="./assets/img_ref1.jpg"
+                alt="Tom Herzog, Cutter's Finest"
+              />
             </div>
             <blockquote>
               Große Webkunst - Keine Kunst mit Alex Mayer!
@@ -104,7 +110,7 @@
           </li>
           <li class="mueller-ag">
             <div class="image-wrapper">
-              <img src="./assets/img_ref3.jpg" alt="" />
+              <img src="./assets/img_ref3.jpg" alt="Vorstand Mueller AG" />
             </div>
             <blockquote>
               <span class="blockquote-content"