update doc

Author: tninja

README.org

@@ -36,7 +36,7 @@ An Emacs interface for AI-assisted software development. *The purpose is to prov
 | Editor tools | Built-in Emacs MCP tools for project info, imenu, xref, and tree-sitter, plus MCP debug and config helpers                              | Deepest Claude-specific Emacs MCP bridge, including diagnostics and custom Emacs tools exposed to Claude | MCP server configuration is available, but the main focus is the ACP shell session        | MCP-aware chat settings and tool-call handling, but centered on the ECA server      |
 | Actions     | Task-first actions such as change code, implement TODO, explain, ask, refactor, and prompt workflows                                | Claude-first IDE prompting, mentions, and editor-aware operations                                       | Shell-first agent interaction; coding style depends on the ACP agent you connect       | Chat-first coding, context injection, and rewrite flows                             |
 | Dev loop    | Built-in TDD cycle, diff review, Magit helpers, and refactoring actions                                                              | Strong Claude-specific ediff flow with diagnostics-aware review                                          | Strong queue, transcript, model-switching, and container-friendly shell workflow       | Strong approvals, rewrite diff, timelines, and saved chats                          |
-| Sessions    | One consistent workflow even when the backend changes underneath                                                            | Multiple Claude sessions per project                                                                  | Multiple ACP shells with queueing and transcripts                                   | Multiple chats per workspace with agent and model switching                     |
+| Sessions    | Multi-session per backend support / git worktree support                                                                         | Multiple Claude sessions per project                                                                  | Multiple ACP shells with queueing and transcripts                                   | Multiple chats per workspace with agent and model switching                     |
 | Visibility    | Review-oriented commands, prompt files, and backend-aware session buffers                                                      | Session list, debug buffer, resume flow, and IDE diff controls                                            | Queue view, transcripts, screenshots, and shell-level visibility                         | Tool-call approvals, expandable blocks, timeline view, and chat state indicators       |
 | Best fit     | You want one Emacs UX across many AI coding tools                                                                             | You want the deepest Claude Code integration in Emacs                                                | You want ACP-native shells and transcript-heavy workflows                           | You want a polished server-backed chat workspace                               |