fix(issuetemplates): need to be in brackets

Signed-off-by: Sjoerd Bozon <sjoerd.bozon@gmail.com>

.github/ISSUE_TEMPLATE/bug-report.md

@@ -3,7 +3,7 @@ name: "\U0001F41B Bug report"
 about: Create a report to help us fix things
 title: ''
 labels: ['needs-triage']
-type: 'bug'
+type: ['bug']
 assignees: ''
 projects: ['nightscout/2']
 

.github/ISSUE_TEMPLATE/feature-request.md

@@ -3,7 +3,7 @@ name: "\U0001F4A1 Feature request \U0001F4A1"
 about: Suggest an idea for this project
 title: ''
 labels: ['needs-triage']
-types: 'feature'
+types: ['feature']
 assignees: ''
 projects: ['nightscout/2']