Update README

README.md

@@ -1,21 +1,61 @@
-# aws-cost-miner
-Application to extract usefull information from Aws Billing Report
+# AWS Cost Miner
+> Application to extract useful information from AWS Billing Report
 
-#UNDER CONSTRUCTION
+## Goal
+
+Understanding all the costs we have when using Amazon Web Services is not a simple task.
+
+The goal of this project is to provide useful and organized data on the costs of your infrastructure, thus facilitating resource optimization.
+
+## Mining Data
+
+AWS provides a report in CSV format of all your detailed costs. This report is in a bucket of your S3. More details on how to get it [click here](https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/DetailedBillingReport.html).
+
+With this file in hand, simply execute one of the docker commands below, as needed.
+
+## Reports
+
+This tool provides a few different types of report. The data is presented in the console itself, but there are plans for new reports to be built in new formats.
+
+Replace *$(pwd)/data.csv* with *$(pwd)/YOUR_FILE_NAME.csv* to run the command.
+
+### EC2 COST REPORT
+
+This report presents the detailed costs of your EC2-related products such as instances and disks.
+
+![ec2-report](images/ec2Report.png)
+
+```
+docker run --rm \
+    --name aws-cost-miner \
+    -v $(pwd)/data.csv:/app/data.csv \
+    -e report=EC2_COST_REPORT \
+    -e groupBy="user:Name" \
+    robsonbittencourt/aws-cost-miner
 ```
-./gradlew clean build && docker build -t robsonbittencourt/aws-cost-miner:latest .
 
+You can group the data according to one of the columns of the CSV file. Use the column name as it is in the file.
+
+```
 docker run --rm \
     --name aws-cost-miner \
     -v $(pwd)/data.csv:/app/data.csv \
     -e report=EC2_COST_REPORT \
     -e groupBy="user:Name" \
     robsonbittencourt/aws-cost-miner
+```
+
+### RESERVED INSTANCE USAGE REPORT
+
+This report demonstrates the usage percentages for all of your [Reserved Instances](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-reserved-instances.html).
 
+![reserved-instance-report](images/reservedInstancesReport.png)
+
+```
 docker run --rm \
     --name aws-cost-miner \
     -v $(pwd)/data.csv:/app/data.csv \
     -e report=RESERVED_INSTANCE_USAGE_REPORT \
     robsonbittencourt/aws-cost-miner
-``
+```