DOCS-15783 fix for Formatting issue in mongoexport page (#129)

Author: kanchana-mongodb

source/mongoexport.txt

@@ -686,10 +686,11 @@ Options
 
    The following :binary:`~bin.mongoexport` uses the :option:`-q` option
    to export only the documents with the field ``a`` greater than or
-   equal to (:query:`$gte`) to ``3`` and the field ``date`` less than
-   ``ISODate("2016-01-01T00:00:00Z")`` (using the :ref:`extended JSON v2
-   format (relaxed mode) for dates { "$date":
-   "YYYY-MM-DDTHH:mm:ss.mmm\<offset\>"} <extended-json-date>`):
+   equal to (:query:`$gte`) ``3`` and the field ``date`` less than
+   (:query:`$lt`) ``ISODate("2016-01-01T00:00:00Z")``, which is
+   specified using the :ref:`extended JSON v2 format (relaxed mode) for
+   dates <extended-json-date>` ( ``{ "$date":
+   "YYYY-MM-DDTHH:mm:ss.mmm\<offset\>"}`` ): 
 
    .. code:: bash