Update README.md

Author: tobozo

README.md

@@ -74,5 +74,5 @@ Credits/requirements:
 
 - https://github.com/siara-cc/esp32_arduino_sqlite3_lib
 - ~~https://github.com/nkolban/ESP32_BLE_Arduino~~ 
-- https://github.com/wakwak-koba/ESP32_BLE_Arduino (specifically patched for the current version)
+- https://github.com/wakwak-koba/arduino-esp32/tree/master/libraries/BLE (specifically patched for the current version)
 - thanks to https://github.com/chegewara (see [this issue](https://github.com/tobozo/ESP32-BLECollector/issues/2))