minor fix

README.rst

@@ -268,7 +268,7 @@ The same example in C/C++ language can be written as:
    ftimings_stop(timer, "b");
    c();
   }
-  ftimings_stop(timer, "main-loop");%
+  ftimings_stop(timer, "main-loop");
       
   ftimings_print(timer, 0.0);