fix(cli): Rename "Machine-readable output" to end with "examples"

The pretty_argparse extension only transforms definition list sections
into separate code blocks when the section heading ends with "examples".
Renamed the section in ls, search, and debug_info commands so they
get properly formatted in documentation.

Added regression test to verify category example sections create
separate code blocks per command line.

Author: tony

src/tmuxp/cli/debug_info.py

@@ -31,7 +31,7 @@
             ],
         ),
         (
-            "Machine-readable output",
+            "Machine-readable output examples",
             [
                 "tmuxp debug-info --json",
             ],

src/tmuxp/cli/ls.py

@@ -60,7 +60,7 @@
             ],
         ),
         (
-            "Machine-readable output",
+            "Machine-readable output examples",
             [
                 "tmuxp ls --json",
                 "tmuxp ls --json --full",

src/tmuxp/cli/search.py

@@ -1067,7 +1067,7 @@ def output_result(result: WorkspaceSearchResult, show_path: bool) -> None:
             ],
         ),
         (
-            "Machine-readable output",
+            "Machine-readable output examples",
             [
                 "tmuxp search --json dev",
                 "tmuxp search --ndjson dev | jq '.name'",

tests/docs/_ext/test_pretty_argparse.py

@@ -586,6 +586,29 @@ def test_transform_definition_list_code_blocks_created() -> None:
     assert code_blocks[2].astext() == "$ cmd3"
 
 
+def test_transform_definition_list_machine_readable_code_blocks() -> None:
+    """Machine-readable output examples creates separate code blocks per line.
+
+    Regression test: Ensures category example sections like "Machine-readable
+    output examples:" split multi-line commands into separate code blocks,
+    not clumped together as a single block.
+    """
+    dl = nodes.definition_list()
+    dl += _make_dl_item(
+        "Machine-readable output examples:",
+        "tmuxp ls --json\ntmuxp ls --json --full\ntmuxp ls --ndjson",
+    )
+
+    result = transform_definition_list(dl)
+
+    section = result[0]
+    code_blocks = [c for c in section.children if isinstance(c, nodes.literal_block)]
+    assert len(code_blocks) == 3, "Each command should be a separate code block"
+    assert code_blocks[0].astext() == "$ tmuxp ls --json"
+    assert code_blocks[1].astext() == "$ tmuxp ls --json --full"
+    assert code_blocks[2].astext() == "$ tmuxp ls --ndjson"
+
+
 # --- _is_usage_block tests ---