fix TOC entries collapsing to one line in ODT output

pov-doc/scripts/render_poc.py

@@ -141,6 +141,14 @@ def process_markdown(
             md_content,
         )
 
+    # Add hard line breaks between consecutive TOC link entries so pandoc
+    # renders each entry on its own line instead of collapsing them into one paragraph
+    md_content = re.sub(
+        r'(\]\([^)]*\))\n(\[)',
+        r'\1\\\n\2',
+        md_content,
+    )
+
     # Insert page break before Table of Contents
     md_content = re.sub(
         r'(#{1,3} \*\*Table of Contents\*\*)',