Spanish SVN book (#2983)

* Spanish SVN book

* Add svn to index

* Add svn to index x2

* Try to fix this

* Try to fix this x2

* wtf

* O'RLY?

free-programming-books-es.md

@@ -44,6 +44,7 @@
 * [Scala](#scala)
 * [Scratch](#scratch)
 * [SQL](#sql)
+* [Subversion](#subversion)
 * [SVG](#svg)
 
 
@@ -351,6 +352,11 @@
 * [Tutorial de SQL](http://www.desarrolloweb.com/manuales/9/) (HTML)
 
 
+### Subversion
+
+* [Control de versiones con Subversion](http://svnbook.red-bean.com/nightly/es/index.html) (HTML)
+
+
 ### SVG
 
 * [Scalable. Un libro sobre SVG](https://leanpub.com/scalable/) (Leanpub cuenta requerida)