Update issue templates

Added new contributor nomination template

.github/ISSUE_TEMPLATE/Meeting-Agenda-Template.md

@@ -4,6 +4,7 @@ about: Use this template to create a new meeting agenda.
 title: Proposed SIG-Graphics-Audio meeting agenda for MMMM-DD-YY
 labels: mtg-agenda
 assignees: ''
+
 ---
 
 ## Meeting Details

.github/ISSUE_TEMPLATE/contributornominationtemplate.md

@@ -0,0 +1,22 @@
+---
+name: ContributorNominationTemplate
+about: Template for nominating Reviewers and/or Maintainers
+title: "<Reviewer or Maintainer> Nomination: <Name/Handle>"
+labels: ''
+assignees: ''
+
+---
+
+## Nomination Details
+
+- **Nominee:** <name>
+- **Role** <Reviewer or Maintainer> 
+
+## Why this person is being nominated
+
+- <brief description>
+- <supporting metrics>
+
+## Outcome (For SIG Facilitator)
+
+**Voting Results** <Approved or Denied>

.github/ISSUE_TEMPLATE/rfc-feature.md

@@ -2,7 +2,7 @@
 name: RFC Feature request
 about: Create Feature RFC for this project
 title: Proposed RFC Feature =description=
-labels: 'rfc-feature'
+labels: rfc-feature
 assignees: ''
 
 ---

.github/ISSUE_TEMPLATE/rfc-suggestion.md

@@ -2,7 +2,7 @@
 name: RFC Suggestion request
 about: Create Suggestion RFC for this project
 title: Proposed RFC Suggestion =description=
-labels: 'rfc-suggestion'
+labels: rfc-suggestion
 assignees: ''
 
 ---