Document Queue\<T>.TryDequeue(T) and Queue\<T>.TryPeek(T)

The descriptions are all missing. Also for TryPeek.

---
#### Document Details

⚠ *Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.*

* ID: 27f5b477-d4c9-a447-3616-e47d2245306b
* Version Independent ID: fd1af4e7-e06a-cb9c-5692-565b5d5e56df
* Content: [Queue<T>.TryDequeue(T) Method (System.Collections.Generic)](https://docs.microsoft.com/en-us/dotnet/api/system.collections.generic.queue-1.trydequeue?f1url=https%3A%2F%2Fmsdn.microsoft.com%2Fquery%2Fdev15.query%3FappId%3DDev15IDEF1%26l%3DEN-US%26k%3Dk(System.Collections.Generic.Queue%601.TryDequeue);k(DevLang-csharp)%26rd%3Dtrue%26f%3D255%26MSPPError%3D-2147217396&view=netcore-2.1)
* Content Source: [xml/System.Collections.Generic/Queue`1.xml](https://github.com/dotnet/dotnet-api-docs/blob/master/xml/System.Collections.Generic/Queue`1.xml)
* Product: **dotnet-api**
* GitHub Login: @dotnet-bot
* Microsoft Alias: **dotnetcontent**