renamed Sphinx dirs to Uppercase

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...elopers/Sphinx/Source/_static/python/hidden_code_block.py

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For_developers/Sphinx/Source/authors.rst

For_developers/Sphinx/Source/changelog.rst

For_developers/Sphinx/Source/conf.py

For_developers/Sphinx/Source/dev_guide.rst

For_developers/Sphinx/Source/documentation.rst

For_developers/Sphinx/Source/ecmwf_data.rst

For_developers/Sphinx/Source/evaluation.rst

For_developers/Sphinx/Source/index.rst

For_developers/Sphinx/Source/installation.rst

For_developers/Sphinx/Source/quick_start.rst

For_developers/Sphinx/Source/support.rst

For_developers/Sphinx/Source/todo.rst