refactor: update README and document schema for improved clarity and functionality

- Revised README.md to provide a clearer project overview, installation instructions, and service descriptions, enhancing onboarding for new developers.
- Removed unnecessary comments in document.schema.ts to streamline the code and improve readability.
- Updated the LiveKit service descriptions in the README to reflect the integration of new functionalities and services.

src/Document/document.schema.ts

@@ -400,7 +400,6 @@ export class DocumentSchema extends PothosSchema {
             const random = Math.random()
             // 0.5% chance to request sync
             if (random <= 0.005) {
-              // set requestSync to true
               payload.requestSync = true
               return payload
             }