fix typo

README.md

@@ -120,7 +120,7 @@ Required Arguments:
  * name: Copayer Name
  * xPubKey - Extended Public Key for this copayer.
  * requestPubKey - Public Key used to check requests from this copayer.
- * copayerSignature - Signature sed by other copayers to verify the that the copayer joining knows the wallet secret.
+ * copayerSignature - Signature used by other copayers to verify that the copayer joining knows the wallet secret.
 
 Returns:
  * copayerId: Assigned ID of the copayer (to be used on x-identity header)

lib/server.js

@@ -214,7 +214,7 @@ WalletService.prototype.getWallet = function(opts, cb) {
  * @param {string} opts.name - The copayer name.
  * @param {string} opts.xPubKey - Extended Public Key for this copayer.
  * @param {string} opts.requestPubKey - Public Key used to check requests from this copayer.
- * @param {string} opts.copayerSignature - S(name|xPubKey|requestPubKey). Used by other copayers to verify the that the copayer joining knows the wallet secret.
+ * @param {string} opts.copayerSignature - S(name|xPubKey|requestPubKey). Used by other copayers to verify that the copayer joining knows the wallet secret.
  */
 WalletService.prototype.replaceTemporaryRequestKey = function(opts, cb) {
   var self = this;