Made changes to ch09.asciidoc

ch09.asciidoc

@@ -188,12 +188,12 @@ Proof of stake is a system by which existing owners of a currency can "stake" cu
 
 ===== NXT
 
-((("NXT alt-coin")))NXT (pronounced "Next") is a "pure" proof-of-stake alt-coin, in that it does not use proof-of-work mining. NXT is a from-scratch implementation of a cryptocurrency, not a fork of bitcoin or any other alt-coins. NXT implements many advanced features, such as a name registry (similar to((("Namecoin"))) Namecoin), a decentralized asset exchange (similar to Colored Coins), integrated decentralized and secure messaging (similar to((("Bitmessage"))) Bitmessage), and stake delegation (delegate proof-of-stake to others). NXT adherents call it a "next-generation" or 2.0 crypto-currency. 
+((("NXT alt-coin")))NXT (pronounced "Next") is a "pure" proof-of-stake alt coin, in that it does not use proof-of-work mining. NXT is a from-scratch implementation of a cryptocurrency, not a fork of bitcoin or any other alt coins. NXT implements many advanced features, including a name registry (similar to((("Namecoin"))) Namecoin), a decentralized asset exchange (similar to Colored Coins), integrated decentralized and secure messaging (similar to((("Bitmessage"))) Bitmessage), and stake delegation (to delegate proof-of-stake to others). NXT adherents call it a "next-generation" or 2.0 cryptocurrency. 
 
 * Block generation: 1 minute
 * Total currency: No limit
-* Consensus algorithm: Proof-Of-Stake
-* Market capitalization: $30 million USD in mid-2014
+* Consensus algorithm: Proof-of-stake
+* Market capitalization: $30 million in mid-2014
 
 
 ==== Dual-Purpose Mining Innovation: Primecoin, Curecoin, Gridcoin