Update the README to reflect the reality

[mmahmoudian]

Is your feature request related to a problem? Please describe. The last commit of this repo dates back to Jun 8, 2020 (9fd123c), but you have the following sentence in the first line of README:

This repo is actively developed on by the Mycroft AI team and community.

Describe the solution you'd like Change the sentence to:

This repo is used to be actively developed on by the Mycroft AI team and community.

Describe alternatives you've considered Archive the repo

Additional context