Merge branch 'carlos.vega-master-patch-30057' into 'master'

Update readme.md to new gitlab url

See merge request NCER-PD/scheduling-system!339

readme.md

 # SMart SCHeduling
 
-[![coverage report](https://git-r3lab.uni.lu/NCER-PD/scheduling-system/badges/master/coverage.svg)](https://git-r3lab.uni.lu/NCER-PD/scheduling-system/commits/master)
+[![coverage report](https://gitlab.lcsb.uni.lu/NCER-PD/scheduling-system/badges/master/coverage.svg)](https://gitlab.lcsb.uni.lu/NCER-PD/scheduling-system/commits/master)
 [![License: AGPL v3](https://img.shields.io/badge/License-AGPL%20v3-blue.svg)](https://www.gnu.org/licenses/agpl-3.0)
 
 ## Docker version