Enhance contributing

CONTRIBUTING.md

@@ -11,16 +11,35 @@ If you are Algolia employee and want to manage a DocSearch account,
 you'll need to add the following variables in your `.env` file:
 
 ```
+APPLICATION_ID=
+API_KEY=
+APPLICATION_ID_PROD=
+API_KEY_PROD=
+HELP_SCOUT_API_KEY=
+NB_HITS_MAX=
+
 WEBSITE_USERNAME=
 WEBSITE_PASSWORD=
 SLACK_HOOK=
 SCHEDULER_USERNAME=
 SCHEDULER_PASSWORD=
+MONITORING_API_KEY=
+PUBLIC_CONFIG_FOLDER=<path to your docsearch-scrapy directory> + /configs/public
+PRIVATE_CONFIG_FOLDER=
+
+BASE_INTERNAL_ENDPOINT=
+INTERNAL_API_AUTH=
+
 DEPLOY_KEY=
 ```
 
 Ping the @docsearch team to get access to those credentials.
 
+## Ready to deploy
+Clone the configurations repo in your docsearch-scraper directory. Command to run from the scraper root:
+```bash
+git clone git@github.com:algolia/docsearch-configs.git configs/public
+```
 The CLI will then have more commands for you to run.