Update issue templates

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for an enhanced app or change to one
+title: "[FEAT] - <your summary here>"
+labels: enhancement
+assignees: ''
+
+---
+
+**NOTE - If you simply want to request the addition of an app to Heimdall, read https://github.com/linuxserver/Heimdall-Apps/wiki/Requesting-Apps**
+
+**Describe the what you'd like to have changed**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
+
+**Are you willing to create a PR yourself?**
+Are you willing to help make this change happen by creating a PR, assuming that a maintainer OKs the proposed change?