Merge pull request bitcoin#164 from OrfeasLitos/neither-instead-of-both

Replace "both are not" with "neither is"

Author: sipa

bip-taproot.mediawiki

@@ -123,7 +123,7 @@ As the message for signature verification, transaction digest is ''hash<sub>TapS
 *** <code>sha_prevouts</code> (32): the SHA256 of the serialization of all input outpoints.
 *** <code>sha_amounts</code> (32): the SHA256 of the serialization of all input amounts.
 *** <code>sha_sequences</code> (32): the SHA256 of the serialization of all input <code>nSequence</code>.
-** If both the <code>SIGHASH_NONE</code> and <code>SIGHASH_SINGLE</code> flags are not set:
+** If neither the <code>SIGHASH_NONE</code> nor the <code>SIGHASH_SINGLE</code> flag is set:
 *** <code>sha_outputs</code> (32): the SHA256 of the serialization of all outputs in <code>CTxOut</code> format.
 * Data about this input:
 ** <code>spend_type</code> (1):