[AIRFLOW-XXX] Include Danamica in list of companies using Airflow (apache#4019)

Author: testvinder

README.md

@@ -144,6 +144,7 @@ Currently **officially** using Airflow:
 1. [Creditas](https://www.creditas.com.br) [[@dcassiano](https://github.com/dcassiano)]
 1. [Custom Ink](https://www.customink.com/) [[@david-dalisay](https://github.com/david-dalisay), [@dmartin11](https://github.com/dmartin11) & [@mpeteuil](https://github.com/mpeteuil)]
 1. [Dailymotion](http://www.dailymotion.com/fr) [[@germaintanguy](https://github.com/germaintanguy) & [@hc](https://github.com/hc)]
+1. [Danamica](https://www.danamica.dk) [[@testvinder](https://github.com/testvinder)]
 1. [Data Reply](https://www.datareply.co.uk/) [[@kaxil](https://github.com/kaxil)]
 1. [DataCamp](https://datacamp.com/) [[@dgrtwo](https://github.com/dgrtwo)]
 1. [DataFox](https://www.datafox.com/) [[@sudowork](https://github.com/sudowork)]