fix(style): fix removing newlines

src/markdown.rs

@@ -127,10 +127,13 @@ pub fn markdown_to_html(markdown: &str, ss: &SyntaxSet, ts: &ThemeSet, _file_pat
                                             IncludeBackground::No,
                                         )
                                         .unwrap_or_else(|_| escape_html(&line));
+
                                         result_html.push_str(&html_line);
+                                        result_html.push('\n');
                                     }
                                     Err(_) => {
                                         result_html.push_str(&escape_html(&line));
+                                        result_html.push('\n');
                                     }
                                 }
                             }