fix: test.js error

Author: zhouguojing02

test.js

@@ -2,7 +2,7 @@ var md2conflu = require('./')
 var assert = require('assert')
 
 var pairs = [
-      ['#h1', 'h1. h1\n\n']
+      ['# h1', 'h1. h1\n\n']
     , ['head1\n===', 'h1. head1\n\n']
     , ['###  h3', 'h3. h3\n\n']
 ]