Added UTM links (#372)

README.md

@@ -158,11 +158,11 @@ Monitoring or reading a characteristic from _Peripheral_/_Service_ level
 [Frontside](https://github.com/thefrontside) provided architectural advice and financial support for this library on behalf of [Resideo](https://github.com/resideo). 
 
 ## Maintained by
-This library is maintained by [Polidea](http://www.polidea.com)
+This library is maintained by [Polidea](https://www.polidea.com/?utm_source=Github&utm_medium=Npaid&utm_campaign=Main&utm_term=Code&utm_content=GH_NOP_MPG_COD_FBLE001)
 
 [Contact us](https://www.polidea.com/project/?utm_source=Github&utm_medium=Npaid&utm_campaign=Kontakt&utm_term=Code&utm_content=GH_NOP_KKT_COD_FBLE001)
 
-[Learn more about Polidea's BLE services](https://www.polidea.com/services/ble).
+[Learn more about Polidea's BLE services](https://www.polidea.com/services/ble/?utm_source=Github&utm_medium=Npaid&utm_campaign=Tech_BLE&utm_term=Code&utm_content=GH_NOP_BLE_COD_FBLE001).
 
 #### Maintainers
 TBD