Another four corrections

line 8   : contains native algorithm that need no external software ---> 'algorithm' should be 'algorithms'(plural)

line 24 : in case it is a multipart features, ---> 'features' should be 'feature' (singular)

line 44 : CRS as the input. Geoalgorithms  ---> double spacing before 'Geoalgorithms'

line 44 : all input layers share the in the same CRS  ---->  'in the' is superfluous here. No need for.

;ine 44 : and does not perform any reprojection ----> 'does', needs to be plural 'do' since it refers to 'Geoalgorithms'