add anchors to each admonition in the report

Author: Stuart Young

code_annotations/report_templates/annotation_group.tpl

@@ -1,2 +1,4 @@
+.. _index.rst#{{ slugify(filename + '-' + annotation.report_group_id |string) }}:
+
 .. admonition:: Group "{{ group_mapping[annotation.annotation_token] }}"
 

code_annotations/report_templates/annotation_list.tpl

@@ -10,6 +10,7 @@ Annotations found in {{ report|length }} files.
     {% for annotation in report[filename] %}
         {% if annotation.report_group_id %}
             {% if loop.changed(annotation.report_group_id) %}
+
                 {% include 'annotation_group.tpl' %}
 
             {% endif %}