chore(release): skip automated demo publish

Author: nivekcode

package.json

@@ -14,7 +14,7 @@
     "build": "npm run build:lib && npm run build:demo",
     "build:lib": "ng build ng-sortgrid",
     "build:demo": "ng build ng-sortgrid-demo --base-href='https://kreuzerk.github.io/ng-sortgrid/'",
-    "publish": "npm run publish:demo && npm run publish:lib",
+    "publish": "npm run publish:lib",
     "publish:demo": "npx angular-cli-ghpages --dir=dist/ng-sortgrid-demo",
     "publish:lib": "cd dist/ng-sortgrid && npm run semantic-release",
     "lint": "ng lint",