Fix markdown and grammar tool

Author: ekinhbayar

spec/00-specification-for-php.md

@@ -1,7 +1,7 @@
 <!-- This file is autogenerated, do not edit it manually -->
 <!-- Run tools/toc.php instead -->
 
-#Specification for PHP
+# Specification for PHP
 Facebook has dedicated all copyright to this specification to the public
 domain worldwide under the CC0 Public Domain Dedication located at
 <http://creativecommons.org/publicdomain/zero/1.0/>. This specification

tools/grammar.php

@@ -48,22 +48,22 @@ function($matches) use($names, $fileName) {
 $grammarFile = $dir . '19-grammar.md';
 
 $output = <<<'END'
-#Grammar
+# Grammar
 
-##General
+## General
 
 The grammar notation is described in [Grammars section](09-lexical-structure.md#grammars).
 
-##Lexical Grammar
+## Lexical Grammar
 
 
 END;
 
 $lexical = file_get_contents($dir . '09-lexical-structure.md');
-$lexical = strstr($lexical, '##Lexical analysis');
+$lexical = strstr($lexical, '## Lexical analysis');
 $output .= extract_grammar($lexical, $names);
 
-$output .= "\n\n##Syntactic Grammar";
+$output .= "\n\n## Syntactic Grammar";
 
 $skipFiles = ['05-types.md', '09-lexical-structure.md', '19-grammar.md'];
 foreach (spec_files($skipFiles) as $fileName => $path) {
@@ -74,7 +74,7 @@ function($matches) use($names, $fileName) {
  }
 
  $heading = extract_heading($code);
- $output .= "\n\n###$heading\n\n" . $grammar;
+ $output .= "\n\n### $heading\n\n" . $grammar;
 }
 
 $output .= "\n";