fix: improve a11y

content/listory.md

@@ -9,10 +9,10 @@ The data on this page reflects my listens from Spotify. I track the data using a
 self-hosted instance of [Listory](https://github.com/apricote/listory). All data
 is coming from the listens of the 30 days prior to the last update time.
 
-### My favorite genres
+## My favorite genres
 
 {{< listory-genres >}}
 
-### My favorite albums
+## My favorite albums
 
 {{< listory-albums >}}

layouts/shortcodes/listory-albums.html

@@ -15,6 +15,7 @@
       <div style="width: 20%; text-align: right">
         {{ .count }}<img
           src="/listen.svg"
+          alt="Listens"
           style="
             height: 1em;
             width: 1em;

layouts/shortcodes/listory-genres.html

@@ -11,6 +11,7 @@
       <div style="width: 20%; text-align: right">
         {{ .count }}<img
           src="/listen.svg"
+          alt="Listens"
           style="
             height: 1em;
             width: 1em;