[doc] Correct typo in filename
[doc] Correct typo in filename

chemfiles/chemfiles,Luthaf/Chemharp,lscalfi/chemfiles,lscalfi/chemfiles,Luthaf/Chemharp,Luthaf/Chemharp,chemfiles/chemfiles,chemfiles/chemfiles,lscalfi/chemfiles,chemfiles/chemfiles,lscalfi/chemfiles