Makes preprint versions better on preprint page.

src/themes/material/templates/repository/preprint.html

@@ -30,7 +30,7 @@
         <div class="col m7">
             <div itemprop="articleBody" id="pdf">
                 <p class="preprint-text">
-                    This is a {{ request.repository.object_name }} and has not been peer reviewed.{% if preprint.doi %} The published version of this {{ request.repository.object_name }} is available: <a href="{{ preprint.doi }}">{{ preprint.doi }}</a>.{% endif %}
+                    This is a {{ request.repository.object_name }} and has not been peer reviewed.{% if preprint.doi %} The published version of this {{ request.repository.object_name }} is available: <a href="{{ preprint.doi }}">{{ preprint.doi }}</a>.{% endif %} This is version {{ preprint.current_version.version }} of this {{ request.repository.object_name }}.
                 </p>
                 {% if preprint.current_version_file_type == 'html' %}
                     <div class="card">
@@ -96,7 +96,7 @@ <h5>Dates</h5>
                     <p><strong>Published: </strong>{{ preprint.date_published }}</p>
                     {% if preprint.preprintversion_set.count > 0 and preprint.current_version and preprint.current_version.date_time > preprint.date_published %}<p><strong>Last Updated: </strong>{{ preprint.current_version.date_time }}</p>{% endif %}
 
-                    {% if preprint.preprintversion_set.count > 0 %}
+                    {% if preprint.preprintversion_set.count > 1 %}
                         <h5>Older Versions</h5>
                         <ul>
                         {% for version in preprint.preprintversion_set.all %}