Merge branch 'fix-badge' into 'master'

fix build badge

See merge request acs/public/simulation/dpsim!149

README.md

 # <img src="Documentation/images/dpsim.png" width=40 /> DPsim
 
-[![build status](https://git.rwth-aachen.de/acs/public/simulation/dpsim/badges/master/build.svg)](https://git.rwth-aachen.de/acs/public/simulation/dpsim/commits/master)
+[![pipeline status](https://git.rwth-aachen.de/acs/public/simulation/dpsim/badges/master/pipeline.svg)](https://git.rwth-aachen.de/acs/public/simulation/dpsim/commits/master)
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 DPsim is a solver library for power system simulation.