added placeholder homepage

assets/styles/layouts/_layout-global.scss

@@ -36,6 +36,34 @@ a {
   flex-grow: 1;
 }
 
+///  Styles for the placeholder homepage only viewalbe with running locally ///
+.home-placeholder {
+  max-width: 400px;
+  margin: 20vh auto 0;
+  color: $article-text;
+  text-align:center;
+  font-style:italic;
+
+  .welcome {
+    text-align:center;
+    font-weight: bold;
+    color: $article-heading;
+    font-size: 1.1rem;
+  }
+  p {
+    margin-top: 1rem;
+    line-height: 1.25rem;
+  }
+  a {
+    color: $article-link;
+    font-weight: bold;
+    text-decoration: none;
+    &:hover {
+      color: $article-link-hover;
+    }
+  }
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////// MEDIA QUERIES ////////////////////////////////
 ////////////////////////////////////////////////////////////////////////////////

layouts/index.html

@@ -1,6 +1,14 @@
-{{ partial "header.html" }}
+{{ partial "header.html" . }}
 
-<p><em>This is a placeholder for the future InfluxDB v2.0 homepage.</em></p>
-<p><a href="/v2.0/">v2.0 director</a></p>
+<div class="home-placeholder">
+  <p class="welcome">
+    Welcome to the InfluxDB v2.x documentation
+  </p>
+  <p>
+    This page is never actually shown on the live docs since visiting the docs domain will redirect to the latest version.
+    Select your desired version from the dropdown above or go straight to the
+    <a href="/{{ $.Site.Data.versions.latest_version }}">latest version</a>.
+  </p>
+</div>
 
-{{ partial "footer.html"}}
+{{ partial "footer.html" . }}

layouts/partials/topnav.html

@@ -5,12 +5,16 @@
       <span class="icon-influx-logotype"></span>
     </a>
     <span class="divider"></span>
-    <a class="docs-home" href="/">Docs</a>
+    <a class="docs-home" href="/{{ $.Site.Data.versions.latest_version }}">Docs</a>
   </div>
   <div class="topnav--right">
     <div class="version-selector">
       {{ $currentVersion := (index (findRE "[^/]+.*?" .RelPermalink) 0) }}
-      <p class="selected">{{ $currentVersion }}</p>
+      {{ if eq $currentVersion nil }}
+        <p class="selected">Select Version</p>
+      {{ else }}
+        <p class="selected">{{ $currentVersion }}</p>
+      {{ end }}
       <ul class="version-list">
         {{ range .Site.Menus.versions.ByName.Reverse }}
           <li><a href="{{ .URL }}">{{ .Name }}</a></li>