Merge pull request bitcoin#1510 from momodaka/bip0380

Update BIP-380: fix typo

Author: jonatack

bip-0380.mediawiki

@@ -26,7 +26,7 @@ This BIP is licensed under the BSD 2-clause license.
 
 Bitcoin wallets traditionally have stored a set of keys which are later serialized and mutated to produce the output scripts that the wallet watches and the addresses it provides to users.
 Typically backups have consisted of solely the private keys, nowadays primarily in the form of BIP 39 mnemonics.
-However this backup solution is insuffient, especially since the introduction of Segregated Witness which added new output types.
+However this backup solution is insufficient, especially since the introduction of Segregated Witness which added new output types.
 Given just the private keys, it is not possible for restored wallets to know which kinds of output scripts and addresses to produce.
 This has lead to incompatibilities between wallets when restoring a backup or exporting data for a watch only wallet.
 
@@ -238,7 +238,7 @@ Valid expressions:
 * Extended private key with hardened derivation and children: <tt>xprvA1RpRA33e1JQ7ifknakTFpgNXPmW2YvmhqLQYMmrj4xJXXWYpDPS3xz7iAxn8L39njGVyuoseXzU6rcxFLJ8HFsTjSyQbLYnMpCqE2VbFWc/3h/4h/5h/*h</tt>
 * Extended private key with key origin, hardened derivation and children: <tt>[deadbeef/0h/1h/2]xprvA1RpRA33e1JQ7ifknakTFpgNXPmW2YvmhqLQYMmrj4xJXXWYpDPS3xz7iAxn8L39njGVyuoseXzU6rcxFLJ8HFsTjSyQbLYnMpCqE2VbFWc/3h/4h/5h/*h</tt>
 
-Invalid expressiosn:
+Invalid expression:
 
 * Children indicator in key origin: <tt>[deadbeef/0h/0h/0h/*]0260b2003c386519fc9eadf2b5cf124dd8eea4c4e68d5e154050a9346ea98ce600</tt>
 * Trailing slash in key origin: <tt>[deadbeef/0h/0h/0h/]0260b2003c386519fc9eadf2b5cf124dd8eea4c4e68d5e154050a9346ea98ce600</tt>