CH10: SPV privacy: update to account for compact block filters too

Previously assumed bloom filters would be used.  Only small updates
needed.

ch08.asciidoc

@@ -1132,16 +1132,15 @@ the best possible privacy should still use their own full node.
 === SPV Clients and Privacy
 
 Clients that implement SPV have weaker privacy than a full node. A full
-node receives all transactions and therefore reveals no information
+node downloads all transactions and therefore reveals no information
 about whether it is using some address in its wallet. An SPV client
-receives a filtered list of transactions related to the addresses that
-are in its wallet. As a result, it reduces the privacy of the owner.
+only downloads transactions that are related to its wallet in some way.
 
-Bloom filters are a way to reduce the loss of privacy. Without them, an
+Bloom filters and compact block filters are a way to reduce the loss of privacy. Without them, an
 SPV client would have to explicitly list the addresses it was interested
-in, creating a serious breach of privacy. However, even with bloom
+in, creating a serious breach of privacy. However, even with
 filters, an adversary monitoring the traffic of an SPV client or
-connected to it directly as a node in the P2P network can collect enough
+connected to it directly as a node in the P2P network may be able to collect enough
 information over time to learn the addresses in the wallet of the SPV
 client.