Fix issue 73

fixed the documentation for all of the chemistry software (minus molpro), machine-learning/tensorflow and introduction, lang/python, numlang/matlab and octave

found issues added as comments in the markdown source code

docs.it4i/software/chemistry/phonopy.md

@@ -118,7 +118,6 @@ $ phonopy-qha -p e-v.dat thermal_properties.yaml-{095..105}
 [3]: ./files-phonopy/KPOINTS
 [4]: ./files-phonopy/INCAR
 
-
 [a]: https://doi.org/10.1016/j.scriptamat.2015.07.021
 [b]: https://phonopy.github.io/phonopy/
 [c]: https://phonopy.github.io/phonopy/install.html