Issue fixes

Author: ItsMeAnanyaSrivastava

_includes/nav.html

@@ -37,8 +37,12 @@
     {% if page.layout != 'index' %}
     <div class="float-sm-left pl-3 breadcrumb">
       <p class="my-0 py-3 py-sm-4 text-gray">
-        {% if page.lang != 'en' %}
-        <a href="/{{ page.lang }}/" class="text-gray">{{ site.title }}</a>
+        {% assign lang_url = '/' | append: page.lang | append: '/' %}
+        {% assign lang_index = site.pages | where: "url", lang_url %}
+        {% if page.lang != 'en' and lang_index.size > 0 %}
+        <a href="{{ lang_url }}" class="text-gray">{{ site.title }}</a>
+        {% elsif page.lang != 'en' %}
+        <a href="{{ '/' | relative_url }}" class="text-gray">{{ site.title }}</a>
         {% else %}
         <a href="/" class="text-gray">{{ site.title }}</a>
         {% endif %}

_layouts/index.html

@@ -33,7 +33,8 @@ <h1 class="h00-mktg">{{ header }}</h1>
         <a href="{{ article.url | relative_url }}" class="guide-cover {{ article.class }} Box height-full d-block">
 
           <div class="lh-none guide-cover-img text-center pt-4">
-            <img src="{{ site.baseurl }}/assets/images/illos/{{ article.class }}.svg" class=""
+            {% assign illo = article.class | default: 'default' %}
+            <img src="{{ site.baseurl }}/assets/images/illos/{{ illo }}.svg" class=""
               alt="{{ article.title }} illustration">
           </div>