Merge pull request bitcoin#866 from dgpv/patch-6

BIP174: remove 'first byte is the type' comment for key data

Author: luke-jr

bip-0174.mediawiki

@@ -69,7 +69,7 @@ the length of that data. <tt>{..}</tt> indicates the raw data itself.
 |-
 | Key
 | byte[]
-| The key itself with the first byte being the type of the key-value pair
+| The Key itself
 |-
 | Value Length
 | Compact Size Unsigned Integer