update readme

Author: Schmluk

README.md

@@ -1,7 +1,7 @@
 ![Ubuntu 20.04 + ROS Noetic: Build](https://github.com/ethz-asl/dynablox/actions/workflows/build_test_20.yml/badge.svg)
 
 # Dynablox
-A volumetric mapping-based approach for Real-time detection of diverse dynamic objects in complex environments.
+A volumetric mapping-based approach for real-time detection of diverse dynamic objects in complex environments.
 
 
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