Many users facing a failed installation when using `pip install -e .`,
this is mainly introduced by the released `torch-npu` version conflict
with `torch>=2.5.1`. This conflict mainly exist in the temp env of
pyproject build.
This pr updates installation tutorial by using `python setup.py develop`
to quick fix this.
cc @wangxiyuan
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Signed-off-by: MengqingCao <cmq0113@163.com>
c5850d302d