Update tutorial-english.html

Author: LorenzoTa

source/tutorial-english.html

@@ -2314,7 +2314,6 @@ <h4>further readings about testing</h4>
 <ul>
 	<li>
 		 http://modernperlbooks.com/books/modern_perl_2016/09-managing-real-programs.html
-
 	</li>
 	<li>
 		 http://shop.oreilly.com/product/9780596100926.do