docs: Fix docs and add improved example repo

Signed-off-by: Simarpreet Singh <simar@linux.com>

action.yaml

@@ -1,4 +1,4 @@
-name: 'Aqua Security Trivy'
+name: 'Trivy Vulnerability Scanner'
 description: 'Scans container images for vulnerabilities with Trivy'
 author: 'Aqua Security'
 inputs:
@@ -18,7 +18,7 @@ inputs:
     required: false
     default: 'UNKNOWN,LOW,MEDIUM,HIGH,CRITICAL'
   format:
-    description: 'output format (table, json, template)'
+    description: 'output format (table, json)'
     required: false
     default: 'table'
   template:
@@ -35,9 +35,7 @@ runs:
   args:
     - 'image'
     - '--format=${{ inputs.format }}'
-    - '--template=${{ inputs.template }}'
     - '--exit-code=${{ inputs.exit-code }}'
     - '--ignore-unfixed=${{ inputs.ignore-unfixed }}'
     - '--severity=${{ inputs.severity }}'
-    - '--output=${{ inputs.output }}'
     - '${{ inputs.image-ref }}'