Adding official npm plugin

.drone.yml

@@ -18,11 +18,14 @@ steps:
       - npm install
       - npm run build
 
-  - name: deploy
-    image: node
-    commands:
-      - npm set registry http://linuxhost.me:4873/
-      - npm publish
+  - name: publish
+    image: plugins/npm
+    settings:
+      username: admin
+      password:
+        from_secret: npm_password
+      email: brandon@watsonlabs.net
+      registry: "http://linuxhost.me:4873"
     when:
       event:
         - tag