CH07: fix image links now that we're using a file in chapters/

chapters/authorization-authentication.adoc

@@ -136,7 +136,7 @@ script validation.
 
 [[scriptSig_and_scriptPubKey]]
 .Combining scriptSig and scriptPubKey to evaluate a transaction script
-image::images/mbc2_0603.png["scriptSig_and_scriptPubKey"]
+image::../images/mbc2_0603.png["scriptSig_and_scriptPubKey"]
 
 ===== The script execution stack
 
@@ -222,7 +222,7 @@ execution is halted explicitly by an operator, such as +OP_VERIFY+,
 
 [[simplemath_script]]
 .Bitcoin's script validation doing simple math
-image::images/mbc2_0604.png["TxScriptSimpleMathExample"]
+image::../images/mbc2_0604.png["TxScriptSimpleMathExample"]
 
 [role="pagebreak-before"]
 The following is a slightly more complex script, which calculates ++2 +
@@ -317,11 +317,10 @@ startref="Stransact06")))
 
 [[P2PubKHash1]]
 .Evaluating a script for a P2PKH transaction (part 1 of 2)
-image::images/mbc2_0605.png["Tx_Script_P2PubKeyHash_1"]
+image::../images/mbc2_0605.png["Tx_Script_P2PubKeyHash_1"]
 
 [[P2PubKHash2]]
 .Evaluating a script for a P2PKH transaction (part 2 of 2)
-image::images/mbc2_0606.png["Tx_Script_P2PubKeyHash_2"]
 
 [[ch07_intro]]
 === Introduction
@@ -338,6 +337,7 @@ opens up a whole world of complex scripts. Then, we will examine new
 script operators that add a time dimension to bitcoin, through
 _timelocks_. Finally, we will look at _Segregated Witness_, an
 architectural change to the structure of transactions.
+image::../images/mbc2_0606.png["Tx_Script_P2PubKeyHash_2"]
 
 [[multisig]]
 === Multisignature