added disclaimer to readme
added disclaimer to readme

pcvonz/pattern_lab_playground,pcvonz/pattern_lab_playground,pcvonz/pattern_lab_playground,Altinn/DesignSystem,KatieMFritz/safs-patternlab-node-gulp-twig,bsmart/pdxr-pl,bsmart/pdxr-pl,patternfly/patternfly-atomic,KatieMFritz/safs-patternlab-node-gulp-twig,pattern-lab/edition-node-gulp,pattern-lab/edition-node-gulp,Altinn/DesignSystem,patternfly/patternfly-atomic