chore: update outdated docs (#8701)

docs/config.md

@@ -5,3 +5,15 @@ For basic configuration instructions, see [this documentation](https://developer
 For advanced configuration instructions, see [this documentation](https://developers.openai.com/codex/config-advanced).
 
 For a full configuration reference, see [this documentation](https://developers.openai.com/codex/config-reference).
+
+## Connecting to MCP servers
+
+Codex can connect to MCP servers configured in `~/.codex/config.toml`. See the configuration reference for the latest MCP server options:
+
+- https://developers.openai.com/codex/config-reference
+
+## Notify
+
+Codex can run a notification hook when the agent finishes a turn. See the configuration reference for the latest notification settings:
+
+- https://developers.openai.com/codex/config-reference

docs/install.md

@@ -26,7 +26,7 @@ rustup component add rustfmt
 rustup component add clippy
 # Install helper tools used by the workspace justfile:
 cargo install just
-# Optional: install nextest for the `just test` helper (or use `cargo test --all-features` as a fallback)
+# Optional: install nextest for the `just test` helper
 cargo install cargo-nextest
 
 # Build Codex.
@@ -41,9 +41,9 @@ just fix -p <crate-you-touched>
 
 # Run the relevant tests (project-specific is fastest), for example:
 cargo test -p codex-tui
-# If you have cargo-nextest installed, `just test` runs the full suite:
+# If you have cargo-nextest installed, `just test` runs the test suite via nextest:
 just test
-# Otherwise, fall back to:
+# If you specifically want the full `--all-features` matrix, use:
 cargo test --all-features
 ```