chore: run prettier on yml

Author: thebuilder

.travis.yml

@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-  - "10"
+  - '10'
 cache: yarn
 script:
   - yarn lint
@@ -15,7 +15,7 @@ deploy:
   skip_cleanup: true
   github_token: $GITHUB_TOKEN # Set in travis-ci.org dashboard
   on:
-   branch: master
+    branch: master
 notifications:
   slack: in2:t4HfbJOtRL7uekgIPh2DUIKb
   email: false

package.json

@@ -48,7 +48,7 @@
     "rollup:umd": "rollup -c --environment FORMAT:umd",
     "rollup:umd.min": "rollup -c --environment MINIFY,FORMAT:umd",
     "prepare": "yarn build",
-    "pretty": "prettier '**/*.{js,md,json}' --write",
+    "pretty": "prettier '**/*.{js,md,json,yml,html}' --write",
     "storybook": "start-storybook -p 9000",
     "test": "jest"
   },