fix(installation): fix vendor instructions
fix(installation): fix vendor instructions

closes https://github.com/aurelia-ui-toolkits/aurelia-kendoui-plugin/issues/250

aurelia-ui-toolkits/aurelia-kendoui-bridge,aurelia-ui-toolkits/aurelia-kendoui-plugin,aurelia-ui-toolkits/aurelia-kendoui-plugin,aurelia-ui-toolkits/aurelia-kendoui-bridge