Update issue template

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -28,7 +28,12 @@ body:
   - type: textarea
     attributes:
       label: "Minimal reproducible full config"
-      description: "You must provide a working config based on [this](https://github.com/hrsh7th/nvim-cmp/blob/main/utils/vimrc.vim). Not part of config."
+      description:
+        You must provide a working config based on [this](https://github.com/hrsh7th/nvim-cmp/blob/main/utils/vimrc.vim). Not part of config.
+        1. Copy the base minimal config to the `~/cmp-repro.vim`
+        2. Edit `~/cmp-repro.vim` for reproducing the issue 
+        3. Open `nvim -u ~/cmp-repro.vim`
+        4. Check reproduction step
     validations:
       required: true