Typo in README of sts4/concourse/theia-docker-image/

[bakshaykamath]

Theai Docker Image

We currently plublish a docler image that contains:

Publish and docker have been missplet in the readme of sts4/concourse/theia-docker-image/

[martinlippert]

Thanks for the pointer, much appreciated. Fixed in fc9f46c.

[martinlippert]

and 8ece73e