clean up code before 1.8.0 release

Author: erusev

Parsedown.php

@@ -1502,8 +1502,6 @@ protected function inlineSpecialCharacter($Excerpt)
                 'extent' => strlen($matches[0]),
             );
         }
-
-        return;
     }
 
     protected function inlineStrikethrough($Excerpt)
@@ -1851,6 +1849,9 @@ protected static function pregReplaceElements($regexp, $Elements, $text)
     # Deprecated Methods
     #
 
+    /**
+     * @deprecated use text() instead
+     */
     function parse($text)
     {
         $markup = $this->text($text);

README.md

@@ -13,7 +13,7 @@ Better Markdown Parser in PHP — <a href="https://parsedown.org/demo">demo</a>
 - [Super fast](http://parsedown.org/speed)
 - Extensible
 - [GitHub flavored](https://github.github.com/gfm)
-- [Tested](http://parsedown.org/tests/) in 5.3 to 7.3
+- [Tested](http://parsedown.org/tests/) in PHP 7.1+
 - [Markdown Extra extension](https://github.com/erusev/parsedown-extra)
 
 ## Installation