Fix Parallelism Typo

NUGET-DOC.md

@@ -115,5 +115,5 @@ You can use extension methods like `IAsyncEnumerable.ToEnumerable()` to use buil
 __9: What's the difference between ForEachAsync and ParallelForEachAsync?__
 
 The `ForEachAsync` allows you to go through a collection and perform an action on every single item in sequential manner. On the other hand, `ParallelForEachAsync` allows you to run the action on multiple items at the same time where the sequential 
-order of completion is not guaranteed. For the latter, the degree of the parallelism is controlled by the `maxDegreeOfParalellism` 
-argument, however it does not guarantee to spin up the exact amount of threads, because it depends on the [thread pool size](https://msdn.microsoft.com/en-us/library/system.threading.threadpool.setmaxthreads(v=vs.110).aspx) and its occupancy at a moment of time. Such parallel approach is much better than trying to create a task for an action for every single item on the collection and then awaiting on all of them with `Task.WhenAll`, because it adds less overhead to the runtime, better with memory usage, and helps with throttling-sensitive scenarios.
+order of completion is not guaranteed. For the latter, the degree of the parallelism is controlled by the `maxDegreeOfParallelism` 
+argument, however it does not guarantee to spin up the exact amount of threads, because it depends on the [thread pool size](https://msdn.microsoft.com/en-us/library/system.threading.threadpool.setmaxthreads(v=vs.110).aspx) and its occupancy at a moment of time. Such parallel approach is much better than trying to create a task for an action for every single item on the collection and then awaiting on all of them with `Task.WhenAll`, because it adds less overhead to the runtime, better with memory usage, and helps with throttling-sensitive scenarios.