docs: change size of headings [skip ci]

.github/ISSUE_TEMPLATE/bug-report.md

@@ -3,21 +3,22 @@ name: Bug report
 about: Create a bug report on patches
 title: 'problem: `some-patch`'
 labels: bug
+assignees: ''
 
 ---
 
-# 🐞 Issue
+## 🐞 Issue
 
 <!-- Describe your issue in detail here -->
 
-# ⚙ Reproduce
+## ⚙ Reproduce
 
 <!-- Include your environment and steps to reproduce the issue as detailed as possible -->
 
-# 🛠 Solution
+## 🛠 Solution
 
 <!-- If applicable, add a possible solution -->
 
-# ⚠ Additional context
+## ⚠ Additional context
 
 <!-- Add any other context about the problem here -->