added another example

Author: cedricbonhomme

content/user-manual/feed-syndication/index.md

@@ -39,6 +39,8 @@ The value of `source` can be one of the following:
 
 ```bash
 curl https://vulnerability.circl.lu/known-exploited-vulnerabilities.rss
+
+curl https://vulnerability.circl.lu/known-exploited-vulnerabilities.rss?per_page=10&page=3
 ```
 
 ### Recent vulnerabilities from all sources
@@ -86,4 +88,4 @@ This will return recent sightings related to recent CVEs for the specified produ
 
 ```bash
 curl 'https://vulnerability.circl.lu/comments/feed.rss?user=adulau'
-```
+```