[MM-856]: Added the requested reviewers in the pulls_created notification (#859)

* [MM-856]: Added the requested reviewers in the pulls_created notification

* Update server/plugin/template.go

Co-authored-by: Raghav Aggarwal <[email protected]>

---------

Co-authored-by: Raghav Aggarwal <[email protected]>

Author: Kshitij-Katiyar

server/plugin/template.go

@@ -217,6 +217,12 @@ Labels: {{range $i, $el := .Labels -}}` + "{{- if $i}}, {{end}}[`{{ $el.Name }}`
 {{- if .Assignees }}
 Assignees: {{range $i, $el := .Assignees -}} {{- if $i}}, {{end}}{{template "user" $el}}{{end -}}
 {{- end -}}
+`))
+
+	template.Must(masterTemplate.New("reviewer").Funcs(funcMap).Parse(`
+{{- if .RequestedReviewers }}
+Reviewers: {{range $i, $el := .RequestedReviewers -}} {{- if $i}}, {{end}}{{template "user" $el}}{{end -}}
+{{- end -}}
 `))
 
 	template.Must(masterTemplate.New("newDraftPR").Funcs(funcMap).Parse(`
@@ -233,6 +239,7 @@ Assignees: {{range $i, $el := .Assignees -}} {{- if $i}}, {{end}}{{template "use
 {{- if ne .Config.Style "skip-body" -}}
 {{- template "labels" dict "Labels" .Event.GetPullRequest.Labels "RepositoryURL" .Event.GetRepo.GetHTMLURL  }}
 {{- template "assignee" .Event.GetPullRequest }}
+{{- template "reviewer" .Event.GetPullRequest }}
 
 {{.Event.GetPullRequest.GetBody | removeComments | replaceAllGitHubUsernames}}
 {{- end -}}