renamed Sphinx dirs to Uppercase

For_developers/Sphinx/Source/Installation/gateway.rst

For_developers/Sphinx/Source/Installation/local.rst

For_developers/Sphinx/Source/Installation/remote.rst

For_developers/Sphinx/Source/Support/faq.rst

For_developers/Sphinx/Source/Support/known_bugs_issues.rst

For_developers/Sphinx/Source/_files/CONTROLparameter.xls

For_developers/Sphinx/Source/_files/ECMWF_FPparameter_ml.png

...velopers/Sphinx/Source/_files/ECMWF_FPparameter_sfc-0.png

...velopers/Sphinx/Source/_files/ECMWF_FPparameter_sfc-1.png

For_developers/Sphinx/Source/_files/IA3.pdf

For_developers/Sphinx/Source/_files/IA3.png

...developers/Sphinx/Source/_files/InstallationParameter.xls

...velopers/Sphinx/Source/_files/MARS_catalogue_snapshot.png

For_developers/Sphinx/Source/_files/SubmitParameters.xls

For_developers/Sphinx/Source/_files/dataset_cmp_table.png

For_developers/Sphinx/Source/_files/ex_runlocal_en.png

For_developers/Sphinx/Source/_files/lin_interpol.pdf

For_developers/Sphinx/Source/_files/lin_interpol.png

For_developers/Sphinx/Source/_files/mode_gateway.png

For_developers/Sphinx/Source/_files/mode_local_member.png