improved the docs

Author: christiangda

README.md

@@ -1,6 +1,6 @@
 # aws_cloudwatch_exporter
 
-![Master branch workflow](https://github.com/slashdevops/aws_cloudwatch_exporter/workflows/Master%20branch%20workflow/badge.svg?branch=master)
+![Master branch workflow](https://github.com/slashdevops/aws_cloudwatch_exporter/workflows/.github/workflows/master.yaml/badge.svg)
 [![Go Report Card](https://goreportcard.com/badge/github.com/slashdevops/aws_cloudwatch_exporter)](https://goreportcard.com/report/github.com/slashdevops/aws_cloudwatch_exporter)
 ![Docker Pulls](https://img.shields.io/docker/pulls/slashdevops/aws_cloudwatch_exporter.svg?maxAge=604800)
 
@@ -11,34 +11,54 @@ This exporter used the AWS CloudWatch GetMetricsData API call, please it is impo
 
 ## Configuration
 
-The configuration could be set using 3 ways:
- 
-1. Configuration Files   (i.e.: ./server.yaml, ./metrics.yaml)
-2. Environment Variables (i.e.: SERVER_PORT, AWS_REGION, AWS_PROFILE, etc)
-3. Program Flags         (i.e.: --serverPort, --region)
+### Server
+
+To configure the server you have 3 ways:
+
+1. Configuration Files   (i.e.: ./server.yaml)
+2. Environment Variables (i.e.: SERVER_PORT, SERVER_ADDRESS, etc)
+3. Program Flags         (i.e.: --serverPort, --serverAddress,etc)
+
+### Metrics Queries
+
+This exporter used the standard metrics queries format used by [AWS CloudWatch API GetMetricData](https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_GetMetricData.html)
+More information at [metrics.md](docs/metrics.md)
 
-The precedence is in the same order of the list, so, if you define values into `server.yaml` and then 
-the same configuration key is defined as a `Env Var` this last will replace the file value.
+### Docs
+
+* [server.yaml](docs/server.md)
+* [metrics.yaml](docs/metrics.md)
 
 ### Running
 
 #### Docker
 
+Using your own `~/.aws` configuration in local
+ 
 ```bash
 docker run --rm \
     -i \
     -u nobody:nogroup \
     --privileged \
     -v ~/tmp/queries/m1.yaml:/home/nobody/m1.yaml:ro \
+    -v ~/tmp/queries/m2.yaml:/home/nobody/m2.yaml:ro \
     -v /tmp/:/home/nobody/tmp/:rw \
     -v ~/.aws:/home/nobody/.aws:ro \
-    -e "AWS_SDK_LOAD_CONFIG=1" \
+    -e "AWS_SDK_LOAD_CONFIG=true" \
     -e "AWS_PROFILE=slashdevops" \
     slashdevops/aws-cloudwatch-exporter-linux-amd64:develop metrics get --metricsFiles /home/nobody/m1.yaml --outFile /home/nobody/tmp/out.yaml 
 ```
 
+Check the result
+
+```bash
+cat /tmp/out.yaml 
+```
+
 #### Binary
 
+If you download the binary from releases 
+
 ```bash
 AWS_SDK_LOAD_CONFIG="true" \
 AWS_PROFILE="slashdevops" \
@@ -47,17 +67,9 @@ AWS_PROFILE="slashdevops" \
     --debug
 ```
 
-### Configuration Files
-
-* [server.yaml](docs/server.md)
-* [metrics.yaml](docs/metrics.md)
-
-
 ## Development / Contributing
 
-### Building and release tools
-
-* https://github.com/prometheus/promu
+WIP
 
 ## License