[cmd] Fix small typo in doc

command_line/cadbiom_cmd/solution_search.py

@@ -177,7 +177,7 @@ def search_entry_point(
         If set to False: The solver will search all solutions with the minimum
         of steps found in the first returned solution.
 
-        :Example:
+        :Example::
 
             all_macs = False, steps = 10;
             First solution found with 4 steps;