change: udpate issue templates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -3,7 +3,6 @@ name: Bug report
 about: Create a report to help us improve
 title: ''
 labels: Pending
-assignees: debugtalk
 ---
 
 ## Describe the bug
@@ -14,7 +13,7 @@ A clear and concise description of what the bug is.
 
 Please complete the following information:
 
- - OS: [e.g. macos, Linux, Windows]
+ - OS: [e.g. macOS, Linux, Windows]
  - Python [e.g. 3.6]
  - HttpRunner [e.g. 2.1.2]
 - **Device ID**: [e.g. 190070690681122]

.github/ISSUE_TEMPLATE/bug_report_zh.md

@@ -3,7 +3,6 @@ name: Bug 反馈（中文）
 about: 提交 bug 反馈
 title: ''
 labels: Pending
-assignees: debugtalk
 ---
 
 ## 问题描述
@@ -14,7 +13,7 @@ assignees: debugtalk
 
 请提供如下版本信息：
 
- - 操作系统类型: [e.g. macos, Linux, Windows]
+ - 操作系统类型: [e.g. macOS, Linux, Windows]
  - Python 版本 [e.g. 3.6]
  - HttpRunner 版本 [e.g. 2.1.2]
  - **设备 ID**: [e.g. 190070690681122]
@@ -37,12 +36,3 @@ assignees: debugtalk
 ## 运行命令 && 堆栈信息
 
 请提供在命令行中运行测试时所在的目录和命令，以及报错时的详细堆栈内容。
-
-```bash
-$ pwd
-/Users/debugtalk/MyProjects/HttpRunner-dev/httprunner/tests
-$ hrun testcases/setup.yml
-INFO     Loading environment variables from /Users/debugtalk/MyProjects/HttpRunner-dev/HttpRunner/tests/.env
-ERROR    !!!!!!!!!! exception stage: load tests !!!!!!!!!!
-ModuleNotFoundError: No module named 'tests.api_server'
-```

.github/ISSUE_TEMPLATE/feature_request.md

@@ -3,7 +3,6 @@ name: Feature request
 about: Suggest an idea for this project
 title: ''
 labels: Pending
-assignees: debugtalk
 ---
 
 **Is your feature request related to a problem? Please describe.**

.github/ISSUE_TEMPLATE/feature_request_zh.md

@@ -3,7 +3,6 @@ name: 需求反馈
 about: 期望新增或改进实现的需求
 title: ''
 labels: Pending
-assignees: debugtalk
 ---
 
 ## 背景描述