Add Matthias to contributor list
@@ -105,6 +105,7 @@ The following people have contributed to Gammapy (first name alphabetical order)
- Luigi Tibaldo (`@tibaldo <https://github.com/tibaldo>`__)
- Manuel Paz Arribas (`@mapazarr <https://github.com/mapazarr>`__)
- Matthew Wood (`@woodmd <https://github.com/woodmd>`__)
+- Matthias Wegen (`@wegenmat <https://github.com/wegenmat>`__)
- Nachiketa Chakraborty (`@cnachi <https://github.com/cnachi>`__)
- Olga Vorokh (`@OlgaVorokh <https://github.com/OlgaVorokh>`__)
- Peter Deiml (`@pdeiml <https://github.com/pdeiml>`__)
