Update docs, GitHub issue templates, workflows

.github/ISSUE_TEMPLATE/bug_report.md

@@ -3,6 +3,15 @@ name: Bug report
 about: Build PHP or library failed, download failed, doesn't seem to work...
 title: ''
 labels: bug
-assignees: crazywhalecc
-
+body:
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: What happened?
+      description: |
+        Please tell us what you do, what you get and what you expected.
+        Provide with some step-by-step instructions to reproduce the issue.
+        If possible, attach a screenshot or log files in ./log directory.
+    validations:
+      required: true
 ---

.github/ISSUE_TEMPLATE/feature_request.md

@@ -3,6 +3,6 @@ name: Feature request
 about: Suggest an idea for this project
 title: ''
 labels: new feature
-assignees: ''
+assignees: crazywhalecc
 
 ---