Add pics to readme.

README.rst

@@ -18,6 +18,10 @@ The CKAN Archiver Extension will download all of a CKAN's resources, for three p
 2. tell the user (and publishers) if the link is broken, on both the dataset/resource and in a 'Broken Links' report
 3. the downloaded file can be analysed by other extensions, such as ckanext-qa or ckanext-pacakgezip.
 
+![Broken link check info and a cached copy offered on resource](archiver_resource.png)
+
+![Broken link report](archiver_report.png)
+
 Compatibility: Requires CKAN version 2.1 or later
 
 TODO: