doc: Fix a subtle formatting error that is not reported by tools

diff --git a/examples/README.rst b/examples/README.rst
index a562127..d55b6e2 100644 (file)
--- a/examples/README.rst
+++ b/examples/README.rst
@@ -124,7 +124,7 @@ Starting and Stopping Actors
 
           This file is not really interesting: the important matter is in the XML file.
 
-      .. example-tab:: examples/c/actor-lifetime/actor-lifetime.c
+       .. example-tab:: examples/c/actor-lifetime/actor-lifetime.c
 
           This file is not really interesting: the important matter is in the XML file.