Edited ch12_mining.adoc with Atlas code editor

ch12_mining.adoc

@@ -344,7 +344,7 @@ that block. Whatever transactions remain in the memory pool are
 unconfirmed and are waiting to be recorded in a new block.
 
 Jing's node immediately constructs a new partial block, a
-candidate for the next block. This block is called a _candidate block_
+candidate for the next block. This block is ((("candidate blocks")))((("blocks", "candidate blocks")))called a _candidate block_
 because it is not yet a valid block, as it does not contain a valid
 proof-of-work. The block becomes valid only if the miner succeeds in
 finding a solution according to the proof-of-work algorithm.