Fix indentation of latest TIL

python/dedent-common-whitespace-from-multiline-string.md

@@ -23,18 +23,18 @@ def test_base_help_message():
 
     help_result = runner.invoke(cli, ["--help"])
     output = textwrap.dedent("""\
-    Usage: vmt [OPTIONS] COMMAND [ARGS]...
+        Usage: vmt [OPTIONS] COMMAND [ARGS]...
 
-    Options:
-      -v, --verbose  See extra output when running commands
-      --help         Show this message and exit.
+        Options:
+          -v, --verbose  See extra output when running commands
+          --help         Show this message and exit.
 
-    Commands:
-      cancel
-      log
-      start
-      status
-      stop
+        Commands:
+          cancel
+          log
+          start
+          status
+          stop
     """)
     assert output in help_result.output
 ```