Investigate & document other efforts around abusive language, toxic language, etc.

### Background on the problem the feature will solve/improved user experience
Since beginning the project, we've come across many similar efforts around mitigating racially biased language and toxic language identification. Documenting similar efforts could help us identify opportunities for collaboration and learn from other solutions.

### Describe the solution you'd like
Documentation on what similar projects are out there, how TakeTwo is similar, and how TakeTwo is different, and what lessons learned can we use from these similar solutions.

### Tasks
Investigation and documentation of similar projects

### Acceptance Criteria
See above.

Issue 正文是唯一提到的切入点；首先调查处理辱骂性、恶意或带有种族偏见语言的类似工作。完成的标准是记录可比较的项目，解释 TakeTwo 的相似之处和不同之处，并记录能够支持协作或改进其解决方案的经验教训。

由索引模型根据 Issue 内容生成。