OpenSource : 5.19 Explain everything related to `containerd`

[Aryamanz29]

Description :

• Explain everything related to containerd

  Note :

• Changes should be made inside the Open_Source/ directory & Opensource branch.

• Put your doc inside section-5

• Issue only for GWOC'21 contributors.

• Issue will be assigned on a first come first serve basis, 1 Issue == 1 PR == 1 Contributor

• For Contributor please don't create the same issue again, before creating any issue do visit OpenSource Milestone

• Doc name should same as the issue title

Must Follow : Contributing Guidelines & Code of Conduct before start Contributing.

Happy Contributing 🙌

[mohitmishra786]

Mohit Mishra OpenSource Batch 1 Profile_Link:- https://github.com/mohitmishra786 I want to contribute through documentation

[Aryamanz29]

@mohitmishra786 Assigning this to you, Happy Learning 🎉🎉