fix folder references in the readme (js folder was referred instead of src folder)
fix folder references in the readme (js folder was referred instead of src folder)

Weswit/Lightstreamer-example-Portfolio-client-dojo,Lightstreamer/Lightstreamer-example-Portfolio-client-dojo,Weswit/Lightstreamer-example-Portfolio-client-dojo,Lightstreamer/Lightstreamer-example-Portfolio-client-dojo