update links in "about" metadata

Author: Sean Wheeler

.github/ISSUE_TEMPLATE/Code_Bug_Report.md

@@ -1,6 +1,6 @@
 ---
 name: Code Bug Report 🐛
-about: PowerShell behavior issues should be filed in the [PowerShell](https://github.com/PowerShell/PowerShell/issues/new) code repository
+about: PowerShell behavior issues should be filed at https://github.com/PowerShell/PowerShell/issues/new/choose
 title: Issue title
 labels: issue-product-feedback
 assignees: ''

.github/ISSUE_TEMPLATE/Support_Question.md

@@ -1,6 +1,6 @@
 ---
 name: Support Question ❓
-about: If you have a question, you can try asking in the PowerShell Slack channel first. If you need official support, refer to the [PowerShell Support Lifecycle](https://aka.ms/pslifecycle)
+about: Try asking in the PowerShell Slack channel first. For official support, refer to the PowerShell Support Lifecycle at https://aka.ms/pslifecycle
 title: "Support Question"
 labels: issue-question
 assignees: ''