diff --git a/pdf_convertor_prompt.md b/pdf_convertor_prompt.md
index e57a2d8..ca51104 100644
--- a/pdf_convertor_prompt.md
+++ b/pdf_convertor_prompt.md
@@ -20,7 +20,7 @@ Please perform the following operations based on the provided Markdown and PDF:
 5.  **Adjust headings**: Based on the different content within sub-chapters, rename headings with the same name to avoid duplicate headings and ensure a clear outline.
 6.  **Clean up redundant headings**: If there is no content between adjacent headings of the same level, the headings should be adjusted to conform to standards.
 
-    - For example, the following is improper formatting, where there is no content between multiple headings of the same level
+    - For example, the following format is incorrect, there is no content between multiple peer headings, and there are duplicate heading names.
 
       ```
       ## Convolutional Neural Networks: Weight Sharing with Multiple Filters
@@ -55,8 +55,6 @@ Please perform the following operations based on the provided Markdown and PDF:
 
       This diagram consists of two parts. The left part illustrates how multiple filters (represented by connections of different colors) are applied to an input image, with each filter detecting a different pattern. The right part shows how a single filter (hidden unit / filter response) is convolved over the input to produce a feature map.
 
-      ## Convolutional Neural Networks
-
       ### Weight Sharing and Translation Invariance
 
       #### Translation invariance: