fix URLs when serving from a subdirectory (#120)

layouts/partials/footer.html

@@ -76,7 +76,7 @@
     <div class="row text-left">
       <div class="col-md-4">
         <a id="theme" href="https://github.com/hossainemruz/toha" target="#">
-          <img src="/assets/images/inverted-logo.png">
+          <img src="{{ "/assets/images/inverted-logo.png" | relURL }}">
           Toha
         </a>
       </div>
@@ -84,7 +84,7 @@
       <div class="col-md-4 text-right">
         <a id="hugo" href="https://gohugo.io/">{{ i18n "hugoAttributionText" }}
         <img
-          src="/assets/images/hugo-logo-wide.svg"
+          src="{{ "/assets/images/hugo-logo-wide.svg" | relURL }}"
           alt="Hugo Logo"
           height="18"
         />