Updated the readme to the currency example
Updated the readme to the currency example

danielElopez/PI-Connector-for-UFL-Samples,osisoft/PI-Connector-for-UFL-Samples,danielElopez/PI-Connector-for-UFL-Samples,danielElopez/PI-Connector-for-UFL-Samples,JeromeLefebvre/PI-Connector-for-UFL-Samples,osisoft/PI-Connector-for-UFL-Samples,osisoft/PI-Connector-for-UFL-Samples