Update issue templates

Author: thomasgalliker

.github/ISSUE_TEMPLATE/bug_report.md

@@ -7,29 +7,29 @@ assignees: ''
 
 ---
 
-### Description
+#### Description
 
-### Steps to Reproduce
+#### Steps to Reproduce
 
 1. 
 2. 
 3. 
 
-### Expected Behavior
+#### Expected Behavior
 - 
 
-### Actual Behavior
+#### Actual Behavior
 - 
 
-### Basic Information
+#### Basic Information
 
 - Version with issue:
 - Last known good version:
 
-### Screenshots
+#### Screenshots
 
 <!-- If the issue is a visual issue, please include screenshots showing the problem if possible -->
 
-### Reproduction Link
+#### Reproduction Link
 
 <!-- If possible, please upload or provide a link to a reproduction case -->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -7,10 +7,10 @@ assignees: ''
 
 ---
 
-## Summary
+#### Summary
 Please provide a brief summary of your proposal. Two to three sentences is best here.
 
-## API Changes
+#### API Changes
 Include a list of all API changes, additions, subtractions as would be required by your proposal.
 
 e.g.
@@ -22,5 +22,5 @@ In order for my new feature to be awesome, we need to create a new boolean value
     myapi.beAwesome = true;
 ```
 
-## Intended Use Case
+#### Intended Use Case
 Provide a detailed example of where your proposal would be used and for what purpose.

.github/ISSUE_TEMPLATE/refactoring.md

@@ -1,24 +1,24 @@
 ---
 name: Refactoring
-about: Internal changes to improve existing features 
+about: Internal changes to improve existing features
 title: "[Refactoring] "
 labels: refactoring
 assignees: ''
 
 ---
 
-### Description
+#### Description
 <!---
 A short description of the planned refactoring.
 --->
 
-### Background & Context
+#### Background & Context
 <!---
 What is the motivation for the refactoring?
 Pros & cons, solutions and decisions concerning (reasoning) the refactoring.
 --->
 
-### References
+#### References
 <!---
 Further references to e.g. other information resources like links to specification(s) etc.
 --->