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 本文で言及されているエントリーポイントはそれだけです。まず、攻撃的、悪意のある、または人種的偏見を含む言語に取り組む類似の取り組みを調査してください。比較可能なプロジェクトを文書化し、TakeTwo との類似点と相違点を説明し、コラボレーションの支援やそのソリューションの改善に役立つ教訓を記録できれば完了です。

索引モデルが issue の本文から書いたものです。