Remove /doc landing page

This makes the reference docs immediately available for the sidebar.

Make /doc an alias for /docs (the reference landing page), to
avoid broken links.

Author: jvns

content/doc/_index.html

@@ -40,12 +40,7 @@
         </ul>
       </li>
       <li>
-        <a href="{{ relURL "doc" }}"{{ if (eq $section "documentation") }} class="active"{{ end }}>Documentation</a>
-        <ul {{ if (eq $section "documentation") }}class="expanded"{{ end }}>
-          <li>
-            <a href="{{ relURL "docs" }}"{{ if or (eq .Params.Subsection "reference") (eq .Params.Subsection "manual") }} class="active"{{ end }}>Reference</a>
-          </li>
-        </ul>
+        <a href="{{ relURL "docs" }}"{{ if or (eq .Params.Subsection "reference") (eq .Params.Subsection "manual") }} class="active"{{ end }}>Reference</a>
       </li>
       <li>
         <a href="{{ relURL "downloads" }}"{{ if (eq $section "downloads") }} class="active"{{ end }}>Downloads</a>

layouts/partials/sidebar.html

@@ -19,7 +19,7 @@ <h3>Learn</h3>
         <li id="nav-documentation">
           <a href="{{ relURL "docs" }}">
             <img src="{{ relURL "images/icons/nav-documentation@2x.png" }}" width="74" height="74" />
-            <h3>Documentation</h3>
+            <h3>Reference</h3>
             <p>Git's reference documentation</p>
           </a>
         </li>

layouts/partials/site-root.html

@@ -140,7 +140,7 @@ def extract_glossary_from_html(content, lang = 'en')
       end
     end
     definition = definition_fragment.to_html
-    
+
     term_names.each do |term|
       glossary[term] = definition
     end
@@ -764,7 +764,7 @@ def index_doc(filter_tags, doc_list, get_content)
     "subsection" => "reference",
     "title" => "Git - Reference",
     "url" => "/docs.html",
-    "aliases" => ["/docs/index.html"]
+    "aliases" => ["/docs/index.html", "/doc/index.html", "/doc", "/doc.html"]
   }
 
   File.open(DOCS_INDEX_FILE, "w") do |out|