docs: Add uv installation example to README

Added uv pip install option:
  uv pip install streammcp

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

Author: Mullassery

README.md

@@ -25,6 +25,8 @@ PyStreamMCP is part of the unified **MCP 2.0 Mega-Platform** (228 tools across 1
 
 ```bash
 pip install PyStreamMCP
+# or with uv
+uv pip install streammcp
 
 # Verify installation
 streammcp --version