Add Arno's gh account

Author: weissarn

README.md

@@ -55,4 +55,4 @@ We always look for contributions, bug reports, feature requests etc. Simply open
 | Jens Müller | Fraunhofer IOSB | [JensMueller2709](https://github.com/JensMueller2709) |  |  |  | x |  |
 | Bastian Rössl | Fraunhofer IOSB-INA | [br-iosb](https://github.com/br-iosb) |  |  |  | x |  |
 | Frank Schnicke | Fraunhofer IESE | [frankschnicke](https://github.com/frankschnicke) |  |  | x |  | x |
-| Arno Weiss | Fraunhofer IWU | []() |  |  |  | x |  |
+| Arno Weiss | Fraunhofer IWU | [alw-iwu](https://github.com/alw-iwu) |  |  |  | x |  |