Add Tutorial for Creating an MCP Client in Typescript (modelcontextprotocol#147)

* Add mcp-client-typescript quickstart guide

* Improve client running explanation, best practices, etc.

* Set new python mcp client github link

* Only call list tools at initialization

* Add package.json and tsconfig.json setup section

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Co-authored-by: David Soria Parra <[email protected]>

Author: allenzhou101