Fix issue template yaml parsing

Author: tmandry

.github/ISSUE_TEMPLATE/new-roadmap-goal.md

@@ -1,7 +1,7 @@
 ---
 name: New roadmap goal
 about: Checklist for owners setting up a new top-level goal on the roadmap
-title: Roadmap goal: [...]
+title: "Roadmap goal: [...]"
 labels: roadmap
 assignees: ''
 ---

.github/ISSUE_TEMPLATE/new-roadmap-initiative.md

@@ -1,7 +1,7 @@
 ---
 name: New roadmap initiative
 about: Checklist for owners setting up a new initiative on the roadmap
-title: Roadmap initiative: [...]
+title: "Roadmap initiative: [...]"
 labels: roadmap
 assignees: ''
 ---