group before parent node + emit init-once

setup.py

@@ -1,7 +1,11 @@
 from setuptools import setup
+import re
 
 with open('README.md') as fp:
     longdesc = fp.read()
+    # replace fragment links with bold text
+    frag_links = re.compile(r'\[([^]]+)\]\(#[^)]*\)')
+    longdesc = frag_links.sub(lambda x: '__{}__'.format(x.group(1)), longdesc)
 
 setup(
     name='lektor-groupby',
@@ -13,7 +17,7 @@ setup(
     },
     author='relikd',
     url='https://github.com/relikd/lektor-groupby-plugin',
-    version='0.8',
+    version='0.9',
     description='Cluster arbitrary records with field attribute keyword.',
     long_description=longdesc,
     long_description_content_type="text/markdown",