Swift doc typo fixes

sdks/swift/Mentat/Mentat/Extensions/Date+Int64.swift

@@ -1,6 +1,12 @@
-///* This Source Code Form is subject to the terms of the Mozilla Public
-// * License, v. 2.0. If a copy of the MPL was not distributed with this
-// * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+/* Copyright 2018 Mozilla
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+ * this file except in compliance with the License. You may obtain a copy of the
+ * License at http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software distributed
+ * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License. */
 
 import Foundation
 

sdks/swift/Mentat/Mentat/Mentat.swift

@@ -15,7 +15,7 @@ import MentatStore
 typealias Entid = Int64
 
 /**
- Protocol to be implemenented by any object that wishes to register for transaction observation
+ Protocol to be implemented by any object that wishes to register for transaction observation
  */
 protocol Observing {
     func transactionDidOccur(key: String, reports: [TxChange])

sdks/swift/Mentat/Mentat/Query/Query.swift

@@ -13,7 +13,7 @@ import MentatStore
 
 
 /**
- This class allows you to contruct a query, bind values to variables and run those queries against a mentat DB.
+ This class allows you to construct a query, bind values to variables and run those queries against a mentat DB.
 
  This class cannot be created directly, but must be created through `Mentat.query(String:)`.
 

sdks/swift/Mentat/Mentat/Transact/TxReport.swift

@@ -42,7 +42,7 @@ class TxReport: RustObject {
     }
 
     /**
-     Access an `Entid` for a temporary identifier that was provided in the transaction can be done through `entid(String:)`.
+     Access an `Entid` for a temporary identifier that was provided in the transaction.
 
      - Parameter tempId: A `String` representing the temporary identifier to fetch the `Entid` for.