index edits 3

ch02_overview.adoc

@@ -235,7 +235,7 @@ created, this unit didn't have a name and some developers simply called
 it the _base unit._  Later many users began calling this unit a
 _satoshi_ (sat) in honor of Bitcoin's creator.  In <<transaction-chain>>
 and some other illustrations in this book, we use satoshi values because
-that's what the protocol itself ((("satoshis")))((("transaction chains", startref="transaction-chains")))uses.
+that's what the protocol itself ((("satoshis")))uses.
 ====
 
 ==== Making Change
@@ -270,7 +270,7 @@ Changeless transactions are only a practical option if the amount being
 spent is roughly the same as the amount available in the transaction
 inputs minus the anticipated transaction fee.  In <<transaction-chain>>,
 we see Bob creating Tx3 as a changeless transaction that spends the
-output he ((("transactions", "change output", startref="transaction-change-output")))((("change output", startref="change-output")))((("outputs", "change output", startref="output-change")))received in Tx2.
+output he received in Tx2.
 
 ==== Coin Selection
 

ch04_keys.adoc

@@ -1014,7 +1014,7 @@ Bitcoin miners about 32 billion years.
 
 Although we do not believe there is any immediate threat to anyone
 creating new P2SH addresses, we recommend all new wallets use newer
-types of addresses to eliminate address collision attacks((("public key cryptography", "hash functions and", startref="pub-key-hash2")))((("hash functions", "Bitcoin payments and", startref="hash-payment2")))((("payments", "with hash functions", secondary-sortas="hash functions", startref="payment-hash2")))((("P2SH (pay to script hash)", startref="p2sh-ch4")))((("collision attacks", startref="collision")))((("addresses", "P2SH (pay to script hash)", startref="address-p2sh-ch4"))) as a concern.
+types of addresses to eliminate address collision attacks((("public key cryptography", "hash functions and", startref="pub-key-hash2")))((("hash functions", "Bitcoin payments and", startref="hash-payment2")))((("payments", "with hash functions", secondary-sortas="hash functions", startref="payment-hash2")))((("P2SH (pay to script hash)", startref="p2sh-ch4")))((("addresses", "P2SH (pay to script hash)", startref="address-p2sh-ch4"))) as a concern.
 ****
 
 === Bech32 Addresses