Add photoswipe

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

layouts/partials/footer.html

@@ -1,7 +1,7 @@
 <footer class="footer">
   <div class="footer-container">
     <div class="copyright">
-      <a href="{{- "/" | relURL -}}">{{ .Site.Title }}</a> &copy;
+      <a href="{{- relURL "" -}}">{{ .Site.Title }}</a> &copy;
       {{ now.Year }}
     </div>
 
@@ -10,7 +10,7 @@
         {{ $len := len .Site.Params.footer }}
         {{ range $i, $el := .Site.Params.footer }}
           <li>
-            <a href="{{- $el.url -}}">{{ $el.name }}</a>
+            <a href="{{- $el.url | safeURL -}}">{{ $el.name }}</a>
           </li>
           {{ if lt (add $i 1) $len }}
             <span class="middot">&middot;</span>