diff --git a/PyPI/setup.cfg b/PyPI/setup.cfg
index 53c4dfa..265c576 100644
--- a/PyPI/setup.cfg
+++ b/PyPI/setup.cfg
@@ -1,7 +1,7 @@
 [metadata]
 # replace with your username:
 name = guan
-version = 0.0.96
+version = 0.0.97
 author = guanjihuan
 author_email = guanjihuan@163.com
 description = An open source python package
diff --git a/PyPI/src/guan/__init__.py b/PyPI/src/guan/__init__.py
index 76cdb78..bf1f6de 100644
--- a/PyPI/src/guan/__init__.py
+++ b/PyPI/src/guan/__init__.py
@@ -2298,7 +2298,7 @@ def download_with_scihub(address=None, num=1):
     if num != 1:
         print('All completed!\n')
 
-# PDF
+## PDF
 
 def get_links_from_pdf(pdf_path, link_starting_form=''):
     # Example: link_starting_form='https://doi.org'