Edited ch08_signatures.adoc with Atlas code editor

ch08_signatures.adoc

@@ -922,7 +922,7 @@ as follows:
 [[nonce_warning]]
 === The Importance of Randomness in Signatures
 
-As we saw in <<schnorr_signatures>> and <<ecdsa_signatures>>,
+As we((("digital signatures", "randomness, importance of", id="digital-signature-random")))((("randomness", "importance in digital signatures", id="random-digital-signature"))) saw in <<schnorr_signatures>> and <<ecdsa_signatures>>,
 the signature generation algorithm uses a random number _k_, as the basis
 for a private/public nonce pair. The value of _k_ is not
 important, _as long as it is random_. If signatures from the same
@@ -968,7 +968,7 @@ fault-injection attacks.
 
 If you are implementing an algorithm to sign transactions in Bitcoin,
 you _must_ use BIP340, RFC6979, or a similar algorithm to
-ensure you generate a different _k_ for each transaction.
+ensure you generate a different _k_ for each ((("digital signatures", "randomness, importance of", startref="digital-signature-random")))((("randomness", "importance in digital signatures", startref="random-digital-signature")))transaction.
 
 === Segregated Witness's New Signing Algorithm