chore(docs): update package.json docs scripts

Author: christopherthielen

package.json

@@ -24,7 +24,8 @@
     "test:downstream": "npm run build && test_downstream_projects --workspace",
     "watch": "karma start --singleRun=false --autoWatch=true --autoWatchInterval=1",
     "debug": "karma start --singleRun=false --autoWatch=true --autoWatchInterval=1 --browsers=Chrome",
-    "docs": "generate_docs && publish_docs",
+    "docs": "generate_docs",
+    "docs:publish": "generate_docs && publish_docs",
     "release": "release --deps @uirouter/core && node ./scripts/bower_release.js",
     "prepublishOnly": "npm run build",
     "artifacts": "artifact_tagging",