Update docs to use filename instead of humanized name

docs/layouts/partials/icons.html

@@ -12,7 +12,6 @@ <h2 id="icons" class="mb-0">Icons</h2>
     {{- range (readDir $dirName) -}}
       {{- $filenameWithExt := split .Name "." -}}
       {{- $filename := index $filenameWithExt 0 -}}
-      {{- $name := humanize $filename -}}
       <li class="col mb-4" data-tags="{{ with $.Site.GetPage "icons" $filename }}{{ with .Params.tags }}{{ delimit . " " }}{{ end }}{{ end }}">
         <a class="d-block text-dark text-decoration-none" href="/icons/{{ $filename }}/">
           <div class="p-3 py-4 mb-2 bg-light text-center rounded">
@@ -21,7 +20,7 @@ <h2 id="icons" class="mb-0">Icons</h2>
             </svg>
           </div>
           <div class="name text-muted text-decoration-none text-center pt-1">
-            {{ $name }}
+            {{ $filename }}
           </div>
         </a>
       </li>