Assignment operators doc: tell what the { } are for

refs #5430

diff --git a/doc/17-language-reference.md b/doc/17-language-reference.md
index 039e3ad319bbc5eea32680eadfceb1d244ec4902..eff67a0fb79f547d9323f64c0671c2122645c01c 100644 (file)
--- a/doc/17-language-reference.md
+++ b/doc/17-language-reference.md
@@ -252,7 +252,7 @@ A list of available functions is available in the [Library Reference](18-library
 
 In addition to the `=` operator shown above a number of other operators
 to manipulate attributes are supported. Here's a list of all
-available operators:
+available operators (the outermost `{` `}` stand for a local variable scope):
 
 ### Operator = <a id="operator-assignment"></a>