docs: fix AsciiDoc list formatting for responsibility items

Convert indented bold text to proper AsciiDoc bulleted list format for:
- Chinese: 团队担当 and 责任担当
- English: Team Stewardship and Accountability

Changed from incorrect indented format:
    *Team Stewardship*: description

To correct AsciiDoc bulleted list format:
* *Team Stewardship*: description

This ensures proper rendering in the generated HTML documentation.

Author: jiaoshuntian

CN/modules/ROOT/pages/master/contribution/contribution_guide.adoc

@@ -25,9 +25,8 @@ IvorySQL 开发者的典型成长路径为：用户 → 审查者 → 提交者
 
 这些角色是对您为 IvorySQL 开发做出重要贡献的认可。它们为您提供了开发工作流中的更多能力以提升工作效率，同时也带来了更大的责任：
 
-    *团队担当*：作为审查者、提交者或维护者，您现在代表着项目和团队成员。您需要秉持最高标准的职业精神，维护团队和项目的声誉。
-
-    *责任担当*：提交者和维护者拥有合并拉取请求的权限，同时也需要承担管理代码或文档变更后果的责任。这包括在变更引发问题时进行回滚或修复，以及与发布经理密切合作，解决发布前测试周期中发现的任何问题。
+* *团队担当*：作为审查者、提交者或维护者，您现在代表着项目和团队成员。您需要秉持最高标准的职业精神，维护团队和项目的声誉。
+* *责任担当*：提交者和维护者拥有合并拉取请求的权限，同时也需要承担管理代码或文档变更后果的责任。这包括在变更引发问题时进行回滚或修复，以及与发布经理密切合作，解决发布前测试周期中发现的任何问题。
 
 == 角色与职责
 

EN/modules/ROOT/pages/master/contribution/contribution_guide.adoc

@@ -25,9 +25,8 @@ The typical career progression for IvorySQL developers is: user → reviewer →
 
 These roles are recognition of your important contributions to IvorySQL development. They provide you with more capabilities in the development workflow to improve work efficiency, while also bringing greater responsibilities:
 
-    *Team Stewardship*: As a reviewer, committer, or maintainer, you now represent the project and team members. You need to uphold the highest standards of professionalism and maintain the reputation of the team and the project.
-
-    *Accountability*: Committers and maintainers have the authority to merge pull requests, while also needing to take responsibility for managing the consequences of code or documentation changes. This includes rolling back or fixing issues when changes cause problems, as well as working closely with the release manager to resolve any issues discovered during the pre-release testing cycle.
+* *Team Stewardship*: As a reviewer, committer, or maintainer, you now represent the project and team members. You need to uphold the highest standards of professionalism and maintain the reputation of the team and the project.
+* *Accountability*: Committers and maintainers have the authority to merge pull requests, while also needing to take responsibility for managing the consequences of code or documentation changes. This includes rolling back or fixing issues when changes cause problems, as well as working closely with the release manager to resolve any issues discovered during the pre-release testing cycle.
 
 == Roles and Responsibilities