Update manifest to version 2.0.0 (#12131)
Update manifest to version 2.0.0 (#12131)

* Update manifest to version 2.0.0

* Update manifest.json

* .

* Update manifest.json

* Update README.md

* .
DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core