improve(cockpit-js-only): update instructions
improve(cockpit-js-only): update instructions

Related to CAM-7020

camunda/camunda-bpm-examples,camunda/camunda-bpm-examples,ingorichtsmeier/camunda-bpm-examples,ingorichtsmeier/camunda-bpm-examples,camunda/camunda-bpm-examples,camunda/camunda-bpm-examples,ingorichtsmeier/camunda-bpm-examples