docs: replace source ~/.zshrc with generic installer hint (#77)

The install script already prints the correct source command for the
user's shell. Hardcoding `source ~/.zshrc` is wrong for bash/fish users.
Replace with a generic comment that defers to the installer output.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: George-iam

CHANGELOG.md

@@ -12,7 +12,7 @@ This project follows [Semantic Versioning](https://semver.org/). During alpha (`
 - **macOS: agent key lookup used wrong path** — `loadAgentKey` hardcoded `~/.config` but macOS uses `~/Library/Application Support`; now uses canonical `scenarioAgentsStorePath()` (#73)
 - **macOS: SSE race in `examples run`** — agents started after intent was created; SSE init phase skipped the delivery event on high-latency connections. Agents now start before `scenarios apply` (#74)
 - **Install script: `ensure_path` false positive** — runtime PATH check returned early when user had a temporary `export`; now checks rc file only (#72)
-- Install script and all docs now include `source ~/.zshrc` hint after install command
+- Install script and all docs now include a generic "source" hint after install command
 
 ## [v0.2.10] — 2026-03-24
 

README.md

@@ -62,7 +62,7 @@ Install or update to the latest release (Linux/macOS, no Go required):
 
 ```bash
 curl -fsSL https://raw.githubusercontent.com/AxmeAI/axme-cli/main/install.sh | sh
-source ~/.zshrc   # or open a new terminal
+# Open a new terminal, or run the "source" command shown by the installer
 ```
 
 The same command installs if you don't have the CLI, and upgrades to the latest release if you do. After install the CLI periodically checks for new versions in the background and prompts you to update.