Use yarn to run scripts

.github/CONTRIBUTING.md

@@ -28,25 +28,25 @@ yarn
 To run flow:
 
 ```
-npm run flow
+yarn flow
 ```
 
 To run the unit tests:
 
 ```
-npm run jest
+yarn jest
 ```
 
 …in watch mode:
 
 ```
-npm run jest:watch
+yarn jest:watch
 ```
 
 To run all automated tests:
 
 ```
-npm test
+yarn test
 ```
 
 ## Visual tests
@@ -54,19 +54,19 @@ npm test
 To run the interactive storybook:
 
 ```
-npm run docs:start
+yarn docs:start
 ```
 
 To generate a static build of the storybook:
 
 ```
-npm run docs:build
+yarn docs:build
 ```
 
 To run the performance benchmarks in a browser (opening `./benchmarks/index.html`):
 
 ```
-npm run benchmarks
+yarn benchmarks
 ```
 
 ## Compile and build
@@ -74,13 +74,13 @@ npm run benchmarks
 To compile the source code to `dist`:
 
 ```
-npm run compile
+yarn compile
 ```
 
 To create a UMD bundle of the library:
 
 ```
-npm run build
+yarn build
 ```
 
 ### Pre-commit
@@ -88,14 +88,14 @@ npm run build
 To format and lint code before commit:
 
 ```
-npm run precommit
+yarn precommit
 ```
 
 To format and lint the entire project:
 
 ```
-npm run fmt
-npm run lint
+yarn fmt
+yarn lint
 ```
 
 ### New Features

package.json

@@ -14,16 +14,16 @@
     "compile": "del ./dist && mkdir dist && babel src -d dist --ignore **/__tests__",
     "docs:build": "build-storybook -o ./docs/dist -c ./docs/storybook/.storybook",
     "docs:start": "start-storybook -p 9001 -c ./docs/storybook/.storybook --dont-track",
-    "docs:publish": "npm run docs:build && git checkout gh-pages && rm -rf ./storybook && mv docs/dist storybook && git add -A && git commit -m \"Storybook deploy\" && git push origin gh-pages && git checkout -",
+    "docs:publish": "yarn docs:build && git checkout gh-pages && rm -rf ./storybook && mv docs/dist storybook && git add -A && git commit -m \"Storybook deploy\" && git push origin gh-pages && git checkout -",
     "flow": "flow",
-    "fmt": "find benchmarks docs src -name '*.js' | grep -v -E '(node_modules|dist)' | xargs npm run fmt:cmd",
+    "fmt": "find benchmarks docs src -name '*.js' | grep -v -E '(node_modules|dist)' | xargs yarn fmt:cmd",
     "fmt:cmd": "prettier --print-width=100 --single-quote --write",
     "jest": "jest",
-    "jest:watch": "npm run test -- --watch",
-    "lint": "npm run lint:cmd -- benchmarks docs src",
+    "jest:watch": "yarn test -- --watch",
+    "lint": "yarn lint:cmd -- benchmarks docs src",
     "lint:cmd": "eslint --fix --ignore-path .gitignore",
     "precommit": "lint-staged",
-    "release": "npm run lint && npm run test && npm run compile && npm run build && npm publish",
+    "release": "yarn lint && yarn test && yarn compile && yarn build && npm publish",
     "test": "flow && jest"
   },
   "babel": {