Update issue templates

Author: InkoHX

.github/ISSUE_TEMPLATE/bug_report.md

@@ -18,7 +18,7 @@ If applicable, add screenshots to help explain your problem.
 
 **Desktop (please complete the following information):**  
  - OS: [Windows, Linux, Android]
- - PocketMine-MP Version: 
+ - PocketMine-MP Version: 3.x.x
 
 **Additional context**  
 Add any other context about the problem here.

.github/ISSUE_TEMPLATE/custom.md

@@ -0,0 +1,7 @@
+---
+name: Custom issue template
+about: Describe this issue template's purpose here.
+
+---
+
+

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,17 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.