Mention PR arduino-libraries#105 in README

Author: alranel

Diff for: README.md

@@ -2,6 +2,7 @@
 
 * https://github.com/arduino-libraries/ArduinoBLE/pull/53
 * https://github.com/arduino-libraries/ArduinoBLE/pull/67
+* https://github.com/arduino-libraries/ArduinoBLE/pull/105
 <!-- pull requests -->
 
 You can consider this as an experimental version of the library, that you can use to test features contributed by the community that haven't been merged yet.