Fix typo in BIP 32

Author: yanmaani

bip-0032.mediawiki

@@ -151,7 +151,7 @@ The total number of possible extended keypairs is almost 2<sup>512</sup>, but th
 * Calculate I = HMAC-SHA512(Key = "Bitcoin seed", Data = S)
 * Split I into two 32-byte sequences, I<sub>L</sub> and I<sub>R</sub>.
 * Use parse<sub>256</sub>(I<sub>L</sub>) as master secret key, and I<sub>R</sub> as master chain code.
-In case I<sub>L</sub> is 0 or ≥n, the master key is invalid.
+In case parse<sub>256</sub>(I<sub>L</sub>) is 0 or parse<sub>256</sub>(I<sub>L</sub>) ≥ n, the master key is invalid.
 
 <img src=bip-0032/derivation.png></img>