Merge branch 'announce-archive' into 'master'

Last commit before archiving

See merge request !1

README.md

+|$`\textcolor{red}{\text{This repository is  archived. RiseClipse is now available at \url{https://github.com/riseclipse}.}}`$|
+|--------|
+
 # riseclipse-metamodel-iec61970cim17v34