docs: 澄清身份可任意选择（单个/组合均可）

README.en.md

@@ -31,6 +31,8 @@ Do not want to type the commands yourself? Just tell any agent session (Codex /
 
 > Use https://github.com/academic-door/github-multiagent-contributor to add codex, claude and renovate as contributors to `<target repository>`.
 
+`codex, claude, renovate` is just an example — **any one or any combination works**, e.g. "add codex", "add codex and renovate", or "add all the bots from the catalog". The count is up to you.
+
 The agent will: download the kit → `--apply` to create a branch with trailers → push the branch → open a PR. You only confirm before the merge.
 
 ## Identity catalog

README.md

@@ -31,6 +31,8 @@ python scripts/build_contributors.py --apply --tools codex,claude,renovate
 
 > 用 https://github.com/academic-door/github-multiagent-contributor 这套方案，给 `<目标仓库>` 加 codex、claude、renovate 作为 contributor。
 
+`codex、claude、renovate` 只是示例——**任意一个或任意组合都可以**，例如「加 codex」「加 codex 和 renovate」「把目录里的 bot 都加上」，数量随意。
+
 Agent 会自行完成：下载套件 → `--apply` 建分支并写入尾注 → 推送分支 → 打开 PR。你只需在合并前确认。
 
 ## 身份目录