Edited ch02_overview.adoc with Atlas code editor

ch02_overview.adoc

@@ -14,13 +14,16 @@ transactions, the network, and mining.
 
 === Bitcoin Overview
 
-[role="fix_tracking"]
-The ((("Bitcoin", "operational overview", id="bitcoin-operational-overview-ch2")))((("blockchain explorers", id="blockchain-explorers")))Bitcoin system consists of users with wallets containing keys,
+++++
+<p class="fix_tracking">
+The Bitcoin system consists of users with wallets containing keys,
 transactions that are propagated across the network, and miners who
 produce (through competitive computation) the consensus blockchain,
 which is the authoritative journal of all transactions.
+</p>
+++++
 
-Each example in this chapter is based
+Each((("Bitcoin", "operational overview", id="bitcoin-operational-overview-ch2")))((("blockchain explorers", id="blockchain-explorers"))) example in this chapter is based
 on an actual transaction made on the Bitcoin network, simulating the
 interactions between several users by sending
 funds from one wallet to another. While tracking a transaction through