Fixing typo (#96)

Closes #95

res/zec_qt_wallet_de.ts

@@ -1304,7 +1304,7 @@ You either have unconfirmed funds or the balance is too low for an automatic mig
     </message>
     <message>
         <location filename="../src/createzcashconfdialog.ui" line="109"/>
-        <source>Please chose a directory to store your wallet.dat and blockchain</source>
+        <source>Please choose a directory to store your wallet.dat and blockchain</source>
         <translation type="unfinished"></translation>
     </message>
     <message>

res/zec_qt_wallet_es.ts

@@ -1320,7 +1320,7 @@ El saldo es insuficiente para una migración automática.
     </message>
     <message>
         <location filename="../src/createzcashconfdialog.ui" line="109"/>
-        <source>Please chose a directory to store your wallet.dat and blockchain</source>
+        <source>Please choose a directory to store your wallet.dat and blockchain</source>
         <translation type="unfinished"></translation>
     </message>
     <message>

res/zec_qt_wallet_pt.ts

@@ -1319,7 +1319,7 @@ Você possui fundos não confirmados ou o saldo é muito baixo para uma migraç
     </message>
     <message>
         <location filename="../src/createzcashconfdialog.ui" line="109"/>
-        <source>Please chose a directory to store your wallet.dat and blockchain</source>
+        <source>Please choose a directory to store your wallet.dat and blockchain</source>
         <translation type="unfinished"></translation>
     </message>
     <message>

src/createzcashconfdialog.ui

@@ -106,7 +106,7 @@
       <item row="1" column="0">
        <widget class="QLabel" name="label_2">
         <property name="text">
-         <string>Please chose a directory to store your wallet.dat and blockchain</string>
+         <string>Please choose a directory to store your wallet.dat and blockchain</string>
         </property>
        </widget>
       </item>