Merge pull request bitcoin#1333 from 54627384/patch-1

Update bip-0300.mediawiki with consistent use of "ACK-counter" term

Author: luke-jr

bip-0300.mediawiki

@@ -210,7 +210,7 @@ D2 controls Bundles, and is driven by M3, M4, M5, and M6.
 | 3
 | ACKs (Work Score)
 | uint16_t
-| The current total number of ACKs (the PoW that has been used to validate the Bundle).
+| The current ACK-counter, which is the total number of ACKs (the PoW that has been used to validate the Bundle).
 |-
 | 4
 | Blocks Remaining (Age)
@@ -226,7 +226,7 @@ A hash of D2 exists in each coinbase txn, and has consensus-significance.
 # The Bundles must be listed in a canonical order (so that the hashes match).
 # From one block to the next, "Age" fields must increase by exactly 1 (ie, Blocks Remaining decreases by 1).
 # Bundles are stored in D2 until they fail (which occurs at "Age" = "MaxAge"), or they succeed (Bundle is paid out).
-# From one block to the next, the value in the ACKs field can increase or decrease by a maximum of 1 (see below).
+# From one block to the next, the value in the ACKs field (ACK-counter) can increase or decrease by a maximum of 1 (see below).
 
 If a Bundle succeeds (in D2), it "becomes" an M6 message and is included in a block.
 
@@ -254,7 +254,7 @@ Once a Bundle is in D2, how can we give it enough ACKs to make it valid?
 From one block to the next, "ACKs" can only change as follows:
 
 * The ACK-counter of any Bundle can only change by (-1,0,+1).
-* Within a sidechain-group, upvoting one Bundle ("+1") requires you to downvote all other Bundles in that group. However, the minimum ACK-value is zero.
+* Within a sidechain-group, upvoting one Bundle ("+1") requires you to downvote all other Bundles in that group. However, the minimum ACK-counter is zero.
 * While only one Bundle can be upvoted at once; the whole group can all be unchanged at once ("abstain"), and they can all be downvoted at once ("alarm").
 
 M4 does not need to be explicitly transmitted. It can simply be inferred from the new state of D2. M4 can therefore be improved over time, without affecting consensus.
@@ -285,7 +285,7 @@ As far as mainchain consensus is concerned, all deposits to a sidechain are alwa
 
 We come, finally, to the critical matter: where users can take their money *out* of the sidechain.
 
-In each block, a Bundle in D2 is considered "approved" if its "ACKs" value meets the threshold (13,150).
+In each block, a Bundle in D2 is considered "approved" if its "ACK-counter" value meets the threshold (13,150).
 
 
 The Bundle must meet all these criteria: