Fixed a typo and changed wording

Fixed "Enable newslette" to "Enable newsletter", and added "es" to "adresses" in "You can add multiple email address by using the ; delimiter".

Ombi.UI/Views/Admin/NewsletterSettings.cshtml

@@ -20,7 +20,7 @@
                     }
                     else
                     {
-                        <input type="checkbox" id="SendRecentlyAddedEmail" name="SendRecentlyAddedEmail"><label for="SendRecentlyAddedEmail">Enable newslette</label>
+                        <input type="checkbox" id="SendRecentlyAddedEmail" name="SendRecentlyAddedEmail"><label for="SendRecentlyAddedEmail">Enable newsletter</label>
                     }
 
 
@@ -30,7 +30,7 @@
 
               <br>
                 <label for="CustomUsers" class="control-label">Email Addresses to Send to (For users that are not in your User Management section)</label>
-              <small>You can add multiple email address by using the ; delimiter</small>
+              <small>You can add multiple email addresses by using the ; delimiter</small>
 <div>
                     <input type="text" class="form-control form-control-custom " placeholder="first@address.com;second@address.com" id="CustomUsers" name="CustomUsers" value="@Model.CustomUsers">
                 </div>