Improve deployment definition.

Author: alrik

.travis.yml

@@ -9,15 +9,10 @@ git:
   depth: 3
 script:
 - yarn validate-schema
-
-jobs:
-  include:
-  - stage: publish
-    node_js: "8"
-    script: echo "publish to npm"
-    deploy:
-      provider: npm
-      email: [email protected]
-      api_key: $NPM_API_KEY
-      on:
-        tags: true
+deploy:
+  provider: npm
+  email: [email protected]
+  api_key: $NPM_API_KEY
+  on:
+    tags: true
+    node: "8"

package.json

@@ -30,5 +30,8 @@
   },
   "devDependencies": {
     "ajv-cli": "^2.1.0"
+  },
+  "publishConfig": {
+    "access": "public"
   }
 }