Update graphgen/models/splitter/markdown_splitter.py

Co-authored-by: Copilot <[email protected]>

Author: ChenZiHong-Gavin

graphgen/models/splitter/markdown_splitter.py

@@ -22,8 +22,9 @@ def __init__(self, **kwargs: Any) -> None:
             "\n\\*\\*\\*+\n",
             "\n---+\n",
             "\n___+\n",
-            # Note that this splitter doesn't handle horizontal lines defined
-            # by *three or more* of ***, ---, or ___, but this is not handled
+            # Note: horizontal lines defined by three or more of ***, ---, or ___
+            # are handled by the regexes above, but alternative syntaxes (e.g., with spaces)
+            # are not handled.
             "\n\n",
             "\n",
             " ",