Update the parameters.html override

To match the current version of mkdocstrings.

We previously introduced this override in #67 to remove the "Type"
column from the templated output. However, the underlying API has
changed. Therefore, this commit updates our override to match the
current version of the template.

templates/python/material/parameters.html

@@ -11,7 +11,7 @@
     {% for parameter in parameters %}
       <tr>
         <td><code>{{ parameter.name }}</code></td>
-        <td>{{ parameter.description|convert_markdown }}</td>
+        <td>{{ parameter.description|convert_markdown(heading_level, html_id) }}</td>
         <td>{% if parameter.default %}<code>{{ parameter.default }}</code>{% else %}<em>required</em>{% endif %}</td>
       </tr>
     {% endfor %}