Add Claude Code installation snippet to README

[bobbyg603]

The README would benefit from a Claude Code install snippet alongside any existing client instructions (Cursor, Claude Desktop, etc.).

Suggested snippet:

claude mcp add bugsplat \
  -e BUGSPLAT_DATABASE=your_database \
  -e BUGSPLAT_CLIENT_ID=your_client_id \
  -e BUGSPLAT_CLIENT_SECRET=your_client_secret \
  -- npx -y bugsplat-mcp@latest

Notes:

• -e KEY=value is repeatable for multiple env vars
• Add -s user to install across all projects, or -s project to commit to .mcp.json for the team
• Default scope is local (current project, not committed)

Docs reference: https://docs.claude.com/en/docs/claude-code/mcp