patch 8.2.3488: issue template is not easy to use

Problem:    Issue template is not easy to use.
Solution:   Use a yaml template. (closes #8928)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,34 +0,0 @@
----
-name: Bug report
-about: Create a report to help us improve Vim
-title: ''
-labels: ''
-
----
-
-_Instructions: Replace the template text and remove irrelevant text (including this line)_
-
-**Describe the bug**
-A clear and concise description of what the bug is.
-(Issues related to the runtime files should be reported to their maintainer, check the file header.)
-
-**To Reproduce**
-Detailed steps to reproduce the behavior:
-1. Run `vim --clean` (or `gvim --clean`, etc.)
-2. Edit `filename`
-3. Type '....'
-4. Describe the error
-
-**Expected behavior**
-A clear and concise description of what you expected to happen.
-
-**Screenshots**
-If applicable, copy/paste the text or add screenshots to help explain your problem.
-
-**Environment (please complete the following information):**
- - Vim version [e.g. 8.1.1234] (Or paste the result of `vim --version`.)
- - OS: [e.g. Ubuntu 18.04, Windows 10 1809, macOS 10.14]
- - Terminal: [e.g. GNOME Terminal, mintty, iTerm2, tmux, GNU screen] (Use GUI if you use the GUI.)
-
-**Additional context**
-Add any other context about the problem here.

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,47 @@
+---
+name: Bug report
+description: Create a report to help us improve Vim.
+labels: [bug]
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for reporting issues of Vim!
+        
+        To make it easier for us to help you please enter detailed information below.
+  - type: textarea
+    attributes:
+      label: Steps to reproduce
+      placeholder: |
+        1. 
+        2. 
+        3. 
+        4. 
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Expected behaviour
+      placeholder: A clear and concise description of what you expected to happen.
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Operating system
+      description: >
+        Your operating system name, version and desktop environment.
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Version of Vim
+      description: >
+        The name of your development environment, version. [e.g. GNOME Terminal (v0.0.0000)]
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Logs and stack traces
+      placeholder: Insert log or other text here (if necessary)
+      render: shell

src/version.c

@@ -757,6 +757,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3488,
 /**/
     3487,
 /**/