DOCPS-30175 typo (#3258)

Author: jocelyn-mendez1

source/reference/operator/aggregation/let.txt

@@ -52,7 +52,7 @@ Definition
         - The :ref:`expression <aggregation-expressions>` to evaluate.
 
    To access variables in aggregation expressions, prefix the variable
-   name with double dollar signs (``$$``) and enclosed in quotes. For
+   name with double dollar signs (``$$``) and enclose in quotes. For
    more information on expressions, see
    :ref:`aggregation-expressions`. For information on use of
    variables in the aggregation pipeline, see