The Key Files list in `cmd/publisher/README.md` includes a bullet for
`build.sh`, but there is no `build.sh` anywhere in the repo. The
publisher is built with `make publisher`, which runs `go build -o
bin/mcp-publisher ./cmd/publisher` (Makefile), so there is no separate
cross-platform build script.
The other three entries in the same list (`main.go`, `commands/`,
`auth/`) all exist. This removes the stale bullet so the list matches
the actual files in the directory.
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