JSON.stringify findings details output + minimal docs

Author: andrzej3393

README.md

@@ -34,6 +34,7 @@ Scan an image uploaded to ECR and fail if vulnerabilities are found.
 | low | Number of low vulnerabilities detected. |
 | informational | Number of informational vulnerabilities detected. |
 | unknown | Number of unknown vulnerabilities detected. |
+| findingsDetails | Details of findings. |
 
 ## Required ECR permissions
 

action.yml

@@ -28,6 +28,8 @@ outputs:
     description: Number of unknown severity vulnerabilities detected.
   total:
     description: Total number of vulnerabilities detected.
+  findingsDetails:
+    description: Details of findings.
 runs:
   using: "docker"
   image: "Dockerfile"

index.js

@@ -219,7 +219,7 @@ const main = async () => {
   const indeterminate = counts.UNDEFINED || 0
   const ignored = ignoredFindings.length
   const total = critical + high + medium + low + informational + indeterminate
-  core.setOutput('findingsDetails', findingsDetails.toString())
+  core.setOutput('findingsDetails', JSON.stringify(findingsDetails))
   core.setOutput('critical', critical.toString())
   core.setOutput('high', high.toString())
   core.setOutput('medium', medium.toString())