Update issue templates

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+<!-- Leave this section here so others know to vote for your feature  -->
+
+Use the Thumbs Up reaction to vote for this feature, and please avoid adding comments like "+1" as they create noise for others watching the issue.
+
+<!-- end -->
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want LazyCache to do. Add some example code of any new APIs that should be added to LazyCache.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.