Signed-off-by: ialidzhikov <i.alidjikov@gmail.com>

Signed-off-by: Xiang Dai <764524258@qq.com>

* Explain that api needs the start parameter set if you want to see logs older than one hour
* Explain that S3 and DynamoDB can also use instance roles in EC2
* Add couple of hints how to debug Promtail
* Add documentation how the Promtail prometheus scrape_configs work

Signed-off-by: Xiang Dai <764524258@qq.com>

Signed-off-by: Xiang Dai <764524258@qq.com>

Signed-off-by: Xiang Dai <764524258@qq.com>

* Clarify links to other sections

* Expanded setup sections

* Clarified usage docs

* Extracted contributing.md

* Extracted provisioning.md

* Operations docs

* Troubleshooting docs started

* Review feedback.

Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>