Edited ch01_intro.adoc with Atlas code editor

ch01_intro.adoc

@@ -72,7 +72,7 @@ Behind the scenes, Bitcoin is also the name of the protocol, a peer-to-peer netw
 * A decentralized peer-to-peer network (the Bitcoin protocol)
 * A public transaction journal (the blockchain)
 * A set of rules for independent transaction validation and currency issuance (consensus rules)
-* A mechanism for reaching global decentralized consensus on the valid blockchain (Proof-of-Work algorithm)
+* A mechanism for reaching global decentralized consensus on the valid blockchain (proof-of-work algorithm)
 
 As a developer, I see Bitcoin as akin to the internet of money, a network for propagating value and securing the ownership of digital assets via distributed computation. There's a lot more to Bitcoin than first meets the eye.
 
@@ -99,14 +99,14 @@ Although these earlier digital currencies worked, they were centralized and, as
 
 Bitcoin was first described in 2008 with the publication of a
 paper titled "Bitcoin: A Peer-to-Peer Electronic Cash
-System,"footnote:["Bitcoin: A Peer-to-Peer Electronic Cash System,"
-Satoshi Nakamoto (https://bitcoin.org/bitcoin.pdf).] written under the
+System,"footnote:[https://bitcoin.org/bitcoin.pdf:["Bitcoin: A Peer-to-Peer Electronic Cash System,"]
+Satoshi Nakamoto.] written under the
 alias of Satoshi Nakamoto (see <<satoshi_whitepaper>>). Nakamoto
 combined several prior inventions such as digital signatures and Hashcash to create
 a completely decentralized electronic cash system that does not rely on
 a central authority for currency issuance or settlement and validation
 of transactions. A key innovation was to use a distributed computation
-system (called a "Proof-of-Work" algorithm) to conduct a global
+system (called a "proof-of-work" algorithm) to conduct a global
 lottery every 10 minutes on average, allowing the decentralized network to
 arrive at _consensus_ about the state of transactions. This
 elegantly solves the issue of double-spend where a single currency unit