Modify README for the port to MoveIt! 2.0 (#1)

* Modify README for MoveIt! 2.0

* Fix broken links in README

Point to official MoveIt! repos

* Remove legal disclaimer from README

* Update README.md regarding debian releases

Co-Authored-By: vmayoral <[email protected]>

* Update README.md, docker containers

Point to the issue for further discussion.

Co-Authored-By: vmayoral <[email protected]>

* Update CI in README

* Update README.md, moveit_core progress

* Update README