update BIP text for locked-in state

Author: da2ce7

bip-0148.mediawiki

@@ -30,7 +30,7 @@ It is hoped that miners will respond to this BIP by activating segwit early, bef
 
 All times are specified according to median past time.
 
-This BIP will be activate between midnight August 1st 2017 (epoch time 1501545600) and midnight November 15th 2017 (epoch time 1510704000) if the existing segwit deployment is not activated before epoch time 1501545600. This BIP will cease to be active when the existing segwit deployment activates.
+This BIP will be active between midnight August 1st 2017 (epoch time 1501545600) and midnight November 15th 2017 (epoch time 1510704000) if the existing segwit deployment is not locked-in or activated before epoch time 1501545600. This BIP will cease to be active when segwit is locked-in.
 
 While this BIP is active, all blocks must set the nVersion header top 3 bits to 001 together with bit field (1<<1) (according to the existing segwit deployment). Blocks that do not signal as required will be rejected.