docs($timeout): minor cleanup

Added a comma separator in the statement
Removed the word the from the statement
Used whose instead of who's in the following statement
Italicized false in the statement
Used a comma separator in the statement

Author: siddii

src/ng/timeout.js

@@ -17,17 +17,17 @@ function $TimeoutProvider() {
       * block and delegates any exceptions to
       * {@link ng.$exceptionHandler $exceptionHandler} service.
       *
-      * The return value of registering a timeout function is a promise which will be resolved when
+      * The return value of registering a timeout function is a promise, which will be resolved when
       * the timeout is reached and the timeout function is executed.
       *
-      * To cancel a the timeout request, call `$timeout.cancel(promise)`.
+      * To cancel a timeout request, call `$timeout.cancel(promise)`.
       *
       * In tests you can use {@link ngMock.$timeout `$timeout.flush()`} to
       * synchronously flush the queue of deferred functions.
       *
-      * @param {function()} fn A function, who's execution should be delayed.
+      * @param {function()} fn A function, whose execution should be delayed.
       * @param {number=} [delay=0] Delay in milliseconds.
-      * @param {boolean=} [invokeApply=true] If set to false skips model dirty checking, otherwise
+      * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise
       *   will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block.
       * @returns {Promise} Promise that will be resolved when the timeout is reached. The value this
       *   promise will be resolved with is the return value of the `fn` function.
@@ -67,7 +67,7 @@ function $TimeoutProvider() {
       * @methodOf ng.$timeout
       *
       * @description
-      * Cancels a task associated with the `promise`. As a result of this the promise will be
+      * Cancels a task associated with the `promise`. As a result of this, the promise will be
       * resolved with a rejection.
       *
       * @param {Promise=} promise Promise returned by the `$timeout` function.