Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,38 @@
+---
+name: Bug report
+about: Create a report to help us reproduce and fix the issue
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Before submitting a bug, please make sure the issue hasn't been already addressed by searching through the [existing and past issues](https://github.com/facebookresearch/llama/issues)**
+
+## Describe the bug
+Please provide a clear and concise description of what the bug is. If relevant, please include a _minimal_ (least lines of code necessary) _reproducible_ (running this will give us the same result as you get) code snippet. Make sure to include the relevant imports.
+
+Remember to wrap the code and outputs in ```` ```triple-quotes blocks``` ````.
+
+### Minimal reproducible example
+
+```python
+# sample code to repro the bug
+```
+
+### Output
+
+```
+<paste stacktrace and other outputs here>
+```
+
+## Runtime Environment
+- Model: [eg: `llama-2-7b-chat`]
+- Using via huggingface?: [yes/no]
+- OS: [eg. Linux/Ubuntu, Windows]
+- GPU VRAM: 
+- Number of GPUs:
+- GPU Make: [eg: Nvidia, AMD, Intel]
+
+**Additional context**
+Add any other context about the problem or environment here.