Merge pull request #3406 from MicrosoftDocs/FromPublicMasterBranch

Merging a non-doc file as admin.

Confirm merge from FromPublicMasterBranch to master to sync with https://github.com/MicrosoftDocs/cpp-docs (branch master)

Author: Colin Robertson

.github/ISSUE_TEMPLATE/new-c---2020-stl-library-documentation-topic-.md

@@ -4,7 +4,8 @@ about: Create a C++ 2020 doc tracking work item
 title: ''
 labels: STL doc work, C++20
 assignees: ''
-
+milestone: backlog
+project: C++20
 ---
 
 ISO paper for this feature: [PaperID]()