fix paragraph list

Parsedown.php

@@ -324,8 +324,6 @@ class Parsedown
 
 					if ($element['type'] === 'paragraph' and isset($element['interrupted']) === false)
 					{
-						$is_heading = true;
-
 						$chopped_line = rtrim($line);
 
 						$i = 1;
@@ -334,19 +332,14 @@ class Parsedown
 						{
 							if ($chopped_line[$i] !== $line[0])
 							{
-								$is_heading = false;
-
-								break;
+								break 2;
 							}
 
 							$i++;
 						}
 
-						if ($is_heading)
-						{
-							$element['type'] = 'heading';
-							$element['level'] = $line[0] === '-' ? 2 : 1;
-						}
+						$element['type'] = 'heading';
+						$element['level'] = $line[0] === '-' ? 2 : 1;
 
 						continue 2;
 					}

tests/data/paragraph_list.html

+<p>paragraph</p>
+<ul>
+<li>li</li>
+<li>li</li>
+</ul>
+<p>paragraph</p>
+<ul>
+<li>
+<p>li</p>
+</li>
+<li>li</li>
+</ul>
\ No newline at end of file

tests/data/paragraph_list.md

+paragraph
+- li
+- li
+
+paragraph
+
+   * li
+   
+   * li
\ No newline at end of file