Update feature_request.md

Author: EZoni

.github/ISSUE_TEMPLATE/feature_request.md

@@ -6,17 +6,20 @@ labels: [enhancement]
 
 _Please remove any sensitive information (e.g., passwords, API keys) from your submission. Thank you for taking the time to report this issue. We will respond as soon as possible._
 
-**What is the context that is prompting you to request a new feature?**
-A clear and concise description of the context.
+## Context and motivation
+Please provide a clear and concise description of the context that is prompting you to request a new feature. What problem are you trying to solve, and how will this feature help you achieve your goals?
 
-**What feature would you like to add to WarpX?**
-A clear and concise description of the feature.
+## Proposed feature
+Describe the feature you would like to add to WarpX in detail. Please include:
+- A clear and concise description of the feature
+- Any relevant technical requirements or specifications
+- How you envision the feature being used
 
-**What alternatives have you considered?**
-A clear and concise description of any alternative solutions or features you have considered.
+## Alternative solutions
+Have you considered any alternative solutions or features that could achieve the same goal? If so, please describe them and explain why you believe the proposed feature is the best solution.
 
-**Additional information**
-If applicable, please add other info about the feature request (e.g., links to existing codes, publications, etc.).
-
-**Screenshots**
-If applicable, please add screenshots about the feature request.
+## Additional information
+If applicable, please provide any additional information that may be relevant to the feature request, such as:
+- Links to existing codes or implementations
+- References to relevant publications or research
+- Any specific use cases or scenarios where the feature would be particularly useful