Added alt text

Author: x1y

themes/pinetheme/layouts/podcast/list.html

@@ -48,7 +48,7 @@ <h1>All episodes</h1>
             <a class="podcast_preview" href="{{ .RelPermalink }}">
             <div class="box col">
                 <div class="box f25">
-                    <img class="coverimg" src="/img/pinetalk.png" width="200" height="200">
+                    <img class="coverimg" src="/img/pinetalk.png" width="200" height="200" alt="Cover image of the podcast episode.">
                 </div>
                 <div class="box f75 rows">