Add more capabilities to the table

[jancurn]

See modelcontextprotocol/registry#718 (comment):

Missing from table: Transport support (STDIO, SSE, Streamable HTTP) per PR #1515
Additional useful fields: Supported platforms, OAuth compatibility details

[jancurn]

Also, let's add link to MCP client docs showing instructions how to install an MCP server - see modelcontextprotocol/registry#718 (comment)