Documentation: A.I. chatbot with Nestia

[samchon]

This pull request includes several updates to the documentation files across multiple packages, adding new features and refining existing descriptions. The most important changes are the introduction of the @nestia/chat package and the reorganization of feature lists to improve clarity.

New Features and Packages:

• Added @nestia/chat: Super A.I. Chatbot by Swagger document. [1] [2] [3] [4]

Documentation Updates:

• Updated feature lists to include @TypedFormData and reorganized SDK and Swagger document sections for better clarity. [1] [2] [3] [4]
• Changed the Discord badge link and text in multiple README.md files. [1] [2]

File Synchronization:

• Added commands to deploy/README.sh to copy README.md to multiple package directories.