2d Animation Package sample project is not under the specified folder hierarchy Assets > Samples. All the packages with sample projects should follow the folder hierarchy "Assets/Samples/Package Name/Version/Sample Name" according to "Package sample support" guideline doc. Refer the attached screenshot

Steps to reproduce:
1) Create a new project
2) Window > Package Manager
3) Install 2D Animation
4) Import sample project

Actual result: The sample project is imported under "Assets/ Unity Technologies / Package name"

Expected result: The sample project is imported under the specified folder hierarchy "Assets/Samples/Package Name/Version/Sample Name"

Occurring in: 2020.1.0a10, 2019.3.0b10

Environment: Both Windows and Mac