Fix naked objects thesis url

Zoltán Reegn · Zoltán Reegn · commit acaccc1c539a · 2017-09-19T19:59:52.000+02:00
The commit fixes the URL, changing from a non-working URL to an actually
working one.
The URL was copied from the wikipedia page for Naked Objects.
diff --git a/naked-objects/README.md b/naked-objects/README.md
@@ -29,4 +29,4 @@ Use the Naked Objects pattern when
 
 ## Credits
 
-* [Richard Pawson - Naked Objects](https://isis.apache.org/resources/thesis/Pawson-Naked-Objects-thesis.pdf)
+* [Richard Pawson - Naked Objects](http://downloads.nakedobjects.net/resources/Pawson%20thesis.pdf)

Original file line number	Diff line number	Diff line change
`@@ -29,4 +29,4 @@ Use the Naked Objects pattern when`
`29`	`29`
`30`	`30`	`## Credits`
`31`	`31`
`32`		`-* [Richard Pawson - Naked Objects](https://isis.apache.org/resources/thesis/Pawson-Naked-Objects-thesis.pdf)`
	`32`	`+* [Richard Pawson - Naked Objects](http://downloads.nakedobjects.net/resources/Pawson%20thesis.pdf)`