feat(impl):[#225]: apply suggestion from peer review

Co-authored-by: Jaro Hartmann <57985712+ds-jhartmann@users.noreply.github.com>

docs/src/docs/administration/configuration.adoc

@@ -76,7 +76,7 @@ If left empty, this defaults to the internal endpoint of the controlplane provid
 
 ==== <discoveryFinderClient.cacheTTL>
 
-When IRS calls the DTR discovery finder URL for BPNL's there is a cache mechanism between them, to improve performance.
+When IRS calls the Discovery Finder URL for BPNLs, the results are cached to improve performance.
 This parameter defines how long the cache is maintained before it is cleared.
 Data is in ISO 8601.