Add Radverkehrsatlas (#674)

 Provides access to bicycle infrastructure data from #OpenStreetMap for administrative staff. https://radverkehrsatlas.de/  Source: https://github.com/FixMyBerlin/atlas-app

README.md

@@ -650,6 +650,7 @@ energy system designs and analysis of interactions between technologies.
 - [EV-EcoSim](https://github.com/ebalogun01/EV-EcoSim) - A grid-aware co-simulation platform for the design and optimization of EV Charging Infrastructure.
 - [e-mission](https://github.com/e-mission/e-mission-docs) - Enables people to track their travel modes—by car, bus, bike or walking and measure their associated energy use and carbon footprint.
 - [CoachCO2](https://github.com/cozy/coachCO2) - Aims to raise user awareness about their carbon footprint, notably based on their transport data.
+- [Radverkehrsatlas](https://github.com/FixMyBerlin/atlas-app) - Provides access to bicycle infrastructure data from OpenStreetMap for administrative staff.
 
 ### Production and Industry
 - [btp-ai-sustainability-bootcamp](https://github.com/SAP-samples/btp-ai-sustainability-bootcamp) - Showcasing SAP partners how to add Intelligence and Sustainability into your industry cloud solutions on SAP Business Technology Platform.