DATACMNS-71 - Fixed missing closing quote in reference documentation.

src/docbkx/repositories.xml

@@ -424,7 +424,7 @@ List&lt;User&gt; findByLastname(String lastname, Pageable pageable);</programlis
         <programlisting language="xml">&lt;?xml version="1.0" encoding="UTF-8"?&gt;
 &lt;beans:beans xmlns:beans="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xmlns="http://www.springframework.org/schema/data/jpa
+  xmlns="http://www.springframework.org/schema/data/jpa"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
     http://www.springframework.org/schema/beans/spring-beans.xsd
     http://www.springframework.org/schema/data/jpa