Description: Sphinx pngmath extension renamed to imgmath

Index: hdbscan-0.8.13/docs/conf.py
===================================================================
--- hdbscan-0.8.13.orig/docs/conf.py
+++ hdbscan-0.8.13/docs/conf.py
@@ -36,7 +36,7 @@ extensions = [
     'sphinx.ext.doctest',
     'sphinx.ext.todo',
     'sphinx.ext.coverage',
-    'sphinx.ext.pngmath',
+    'sphinx.ext.imgmath',
     'sphinx.ext.viewcode',
     # 'sphinx.ext.napoleon',
     # 'numpy_ext.numpydoc'
