add operation to plugin doc

diff --git a/docs/source/Plugins.rst b/docs/source/Plugins.rst
index 4511223..2fae394 100644 (file)
--- a/docs/source/Plugins.rst
+++ b/docs/source/Plugins.rst
@@ -166,6 +166,11 @@ Battery
 
 .. doxygengroup:: plugin_battery
 
+.. _plugin_operation:
 
+Operation
+===========
+
+.. doxygengroup:: plugin_operation
 
 ..  LocalWords:  SimGrid