Updated to fix issue.

app.py

@@ -144,6 +144,65 @@ def is_hidden_path(file_path):
     # Check all parts of the path including the filename
     return any(part.startswith('.') for part in path_obj.parts)
 
+def normalize_list_indentation(md_content):
+    """
+    Normalize list indentation from 2-space to 4-space for proper markdown parsing.
+    Python-Markdown requires 4 spaces for nested lists, but many editors use 2 spaces.
+    Also ensures blank lines before lists when needed.
+    """
+    lines = md_content.split('\n')
+    normalized_lines = []
+    
+    def is_list_item_line(text):
+        """Check if a line is actually a list item, not bold/italic markdown."""
+        stripped = text.lstrip(' ')
+        if not stripped:
+            return False
+        
+        # Check for unordered list (- or + or single * followed by space)
+        if stripped[0] in '-+':
+            return len(stripped) > 1 and stripped[1] == ' '
+        elif stripped[0] == '*':
+            # Make sure it's not ** (bold) and is actually a list marker
+            return len(stripped) > 1 and stripped[1] == ' ' and not (len(stripped) > 2 and stripped[2] == '*')
+        
+        # Check for ordered list (digits followed by . and space)
+        if stripped[0].isdigit():
+            i = 0
+            while i < len(stripped) and stripped[i].isdigit():
+                i += 1
+            return i < len(stripped) and stripped[i] == '.' and i + 1 < len(stripped) and stripped[i + 1] == ' '
+        
+        return False
+    
+    for i, line in enumerate(lines):
+        # Count leading spaces
+        leading_spaces = len(line) - len(line.lstrip(' '))
+        stripped = line.lstrip(' ')
+        is_list = is_list_item_line(line)
+        
+        if is_list:
+            # Check if previous line exists and is not empty and is not a list item and is not a blank line
+            if i > 0 and normalized_lines:
+                prev_line = normalized_lines[-1]
+                prev_is_list = is_list_item_line(prev_line)
+                
+                # If previous line exists, is not empty, and is not a list item, add blank line
+                if prev_line.strip() and not prev_is_list and prev_line != '':
+                    normalized_lines.append('')
+            
+            if leading_spaces > 0 and leading_spaces % 2 == 0:
+                # Convert 2-space indentation to 4-space for nested lists
+                # Each 2-space indent becomes 4-space
+                new_spaces = (leading_spaces // 2) * 4
+                normalized_lines.append(' ' * new_spaces + stripped)
+            else:
+                normalized_lines.append(line)
+        else:
+            normalized_lines.append(line)
+    
+    return '\n'.join(normalized_lines)
+
 def rewrite_image_paths(md_content, filepath):
     """Rewrite relative image paths to be served by Flask."""
     # Get the directory of the current file
@@ -403,6 +462,9 @@ def view_file(filepath):
         # Rewrite image paths to be served by Flask
         md_content = rewrite_image_paths(md_content, filepath)
         
+        # Normalize list indentation for proper markdown parsing
+        md_content = normalize_list_indentation(md_content)
+        
         # Convert markdown to HTML
         html_content = markdown.markdown(
             md_content,