docs(dip-13): clarify bloom filter more

Author: thephez

dip-0013.md

@@ -171,10 +171,11 @@ the top up transaction has already been used and the balance transferred into cr
 not the case, the wallet can then perform an identity top up transition as defined in DIP11 using
 the top up funding key.
 
-It is recommended that 30 address hashes of both unbound top up funding keys and bound top up
-funding keys for each known identity be added to the bloom filter sent to peers. If transactions
-containing 25 address hashes or more have been found for either category, the filter should be
-regenerated with 30 more.
+It is recommended that 30 address hashes of unbound top up funding keys and 30 address hashes of
+bound top up funding keys for each known identity be added to the bloom filter sent to peers. If
+transactions containing 25 address hashes or more have been found for unbound keys, the filter
+should be regenerated with 30 more. If transactions containing 25 address hashes or more have been
+found for one or more identities, the relevant filter(s) should be regenerated with 30 more.
 
 # Identity Invitation Funding keys