add hcl dataset (#1366)

docs/_site/posts/annotations.html

@@ -19,7 +19,7 @@
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-    <link rel="stylesheet" href="/cellxgene/assets/css/style.css?v=88411ae4b44d899609d211ed2db5c41e4fba3068">
+    <link rel="stylesheet" href="/cellxgene/assets/css/style.css?v=6193ae49975e7bccac34c95b3d13d42f74d6fcee">
     <!--[if lt IE 9]>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.3/html5shiv.min.js"></script>
     <![endif]-->
@@ -127,7 +127,7 @@
 
 <p>There are two options for updating draft annotations.</p>
 
-<h3 id="autodetect-annotations-csv">Autodetect annotations csv</h3>
+<h3 id="autodetect-annotations-csv">Autodetect annotations CSV</h3>
 
 <p>Cellxgene will automatically find and reload your draft annotations in editable mode.</p>
 
@@ -136,9 +136,9 @@
 2 - You launch cellxgene from the <code class="language-plaintext highlighter-rouge">annotations-directory</code> (i.e., the directory that contains your CSV)<br />
 3 - You use the same browser and have not cleared your cookies (we use a small cookie to keep track of which user created the file to avoid accidental overwrites; see FAQ)</p>
 
-<h3 id="specify-an-annotations-csv">Specify an annotations csv</h3>
+<h3 id="specify-an-annotations-csv">Specify an annotations CSV</h3>
 
-<p><strong>This mode is only appropriate for single-user, local cellxgene instances</strong></p>
+<p><strong>This mode is only appropriate for single-user, local cellxgene instances.</strong></p>
 
 <p>If you’d like to specify the complete file path for your annotations, you can do so by running:</p>