Fixed example in README

README.md

@@ -43,7 +43,7 @@ var converter = new Showdown().converter()
 
 converter.makeHtml('#hello markdown!')
 
-// <h1 id='<h1 id="hellomarkdown">hello, markdown</h1>
+// <h1 id="hellomarkdown">hello, markdown</h1>
 
 ```