Merge branch 'develop' into 'develop'

Fix typos in parameter test

See merge request irmb/VirtualFluids_dev!95

src/gpu/VirtualFluids_GPU/Parameter/parameterTest.cfg

-# this two parameters need to be defined in each config file
+# these two parameters need to be defined in each config file
 Path = /output/path
 GridPath = /path/to/grid
 
-# optional parameter
+# optional parameters
 NumberOfDevices = 2
 Devices = 2 3
 Prefix = MyPrefix