fix: documentation, circle-ci config

CONTRIBUTING.md

@@ -12,7 +12,7 @@ git clone [email protected]:Botfuel/botfuel-dialog.git
 
 ```shell
 npm install
-npm bootstrap
+npm run bootstrap
 ```
 
 ### Issue with node-gyp and Python v3.x
@@ -26,7 +26,7 @@ If python2.7 is not the default python version, you can use a virtualenv (`pew`)
 ```shell
 npm config set python /path/to/your/python2.7 -g
 npm install
-npm bootstrap
+npm run bootstrap
 ```
 
 ## Workflow

package.json

@@ -3,12 +3,12 @@
   "scripts": {
     "bootstrap": "lerna bootstrap && lerna run build --scope botfuel-dialog && lerna link --force-local",
     "clean": "lerna clean && node clean.js",
-    "type-check": "npm flow",
+    "type-check": "npm run flow",
     "style": "lerna run style",
     "commitmsg": "node check-commit-msg.js",
     "pretest": "npm run bootstrap",
     "release": "npm test && lerna run build --scope botfuel-dialog && lerna publish --conventional-commits --changelog-preset=angular",
-    "unit-test": "BOTFUEL_APP_TOKEN=TEST_BOT BOTFUEL_APP_ID=TEST_BOT BOTFUEL_APP_KEY=TEST_BOT jest packages/botfuel-dialog",
+    "unit-test": "BOTFUEL_APP_TOKEN=TEST_BOT BOTFUEL_APP_ID=TEST_BOT BOTFUEL_APP_KEY=TEST_BOT jest packages/botfuel-dialog --maxWorkers=2",
     "test": "jest --forceExit --maxWorkers=2"
   },
   "devDependencies": {