Change step signature to make externalreferences a list of references (#113)

Co-authored-by: kroskinskiis <[email protected]>

Author: xncz8h

docs/content/en/docs/soarca-extensions/fin-protocol.md

@@ -114,7 +114,7 @@ The message is used to register a fin to SOARCA. It has the following payload.
 |type               |action         |string                     |Action type 
 |name               |name           |string                     |message id 
 |description        |description    |string                     |Description of the step 
-|external_references|<references>   |[external reference](https://docs.oasis-open.org/cacao/security-playbooks/v2.0/cs01/security-playbooks-v2.0-cs01.html#_Toc152256542) |References to external recourses to further enhance the step also see CACAO V2 10.9.
+|external_references|<references>   |list of [external reference](https://docs.oasis-open.org/cacao/security-playbooks/v2.0/cs01/security-playbooks-v2.0-cs01.html#_Toc152256542) |References to external recourses to further enhance the step also see CACAO V2 10.9.
 |command            |command        |string                     |Command to execute
 |target             |UUID           |string                     |Target UUID cto execute command against
 

models/fin/fin.go

@@ -54,12 +54,12 @@ type Capability struct {
 
 // Step structure as example to the executor
 type Step struct {
-	Type               string                   `json:"type"`
-	Name               string                   `json:"name"`
-	Description        string                   `json:"description"`
-	ExternalReferences cacao.ExternalReferences `json:"external_references"`
-	Command            string                   `json:"command"`
-	Target             string                   `json:"target"`
+	Type               string                   	`json:"type"`
+	Name               string                   	`json:"name"`
+	Description        string                   	`json:"description"`
+	ExternalReferences []cacao.ExternalReferences 	`json:"external_references"`
+	Command            string                   	`json:"command"`
+	Target             string                   	`json:"target"`
 }
 
 // Unregister command structure