Merge pull request #2 from aquasecurity/reshefs_expand_readme

added more details to the readme file

README.md

@@ -20,9 +20,27 @@ Examples:
 
 ## Usage
 Trivy's options need to be passed after `--`.
+Trivy receives a target directory containing IaC files
 
+Set Aqua plugin as Trivy's current default plugin by exporting an environment variable
 ```
-# Scan an IaC file
   export TRIVY_RUN_AS_PLUGIN=aqua
+```
+
+
+### Scan an IaC target
+```
   trivy iac --aqua-key <key> --aqua-secret <secret> <target>
 ```
+
+### Scan an IaC target and tag the scan
+```
+  trivy iac --aqua-key <key> --aqua-secret <secret> --tags key1:value1 --tags key2:value2 <target>
+```
+
+### Scan an IaC target and report only specific severities
+```
+  trivy iac --aqua-key <key> --aqua-secret <secret> --severities CRITICAL,HIGH <target>
+```
+
+