Enhance AI and AWS Integration in README

Updated project name to "Tender Summarization Service" and added AWS Bedrock and Parameter Store badges. Enhanced Lambda function description to include AI summaries via Anthropic Claude 3 Sonnet. Expanded sources to include Transnet, SARS, and SANRAL. Updated architecture with new components like Deduplication Lambda and AI Summary Lambda. Highlighted AWS Parameter Store for dynamic prompts. Enhanced features with AI summarization and caching. Added new models and services for AI integration. Updated configuration for Parameter Store setup and IAM permissions. Expanded "How It Works" with prompt fetching and AI summarization steps. Updated tech stack, message models, and queue descriptions. Improved monitoring, error handling, performance, and security. Updated troubleshooting and roadmap for future enhancements.

Author: SashveerRamjathan