Duplicate README.md and readme.md

[rayzchen]

The following warning is produced when installing:

$ pip install git+https://github.com/pyscript/pyscript-stubs
Collecting git+https://github.com/pyscript/pyscript-stubs
  Cloning https://github.com/pyscript/pyscript-stubs to C:\Users\raych\AppData\Local\Temp\pip-req-build-d599qtsg
  Running command git clone --filter=blob:none --quiet https://github.com/pyscript/pyscript-stubs 'C:\Users\raych\AppData\Local\Temp\pip-req-build-d599qtsg'
  warning: the following paths have collided (e.g. case-sensitive paths
  on a case-insensitive filesystem) and only one from the same
  colliding group is in the working tree:

    'README.md'
    'readme.md'
  Resolved https://github.com/pyscript/pyscript-stubs to commit 638cd8b8b556bbf1a8eb3f454036dcc3320d06ee
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Building wheels for collected packages: pyscript_stubs
  Building wheel for pyscript_stubs (pyproject.toml) ... done
  Created wheel for pyscript_stubs: filename=pyscript_stubs-0.0.2-py3-none-any.whl size=5709 sha256=88bc6bccea651ab2201903ad9d453359c21e92f3de9237c0e3388def3663cd7a
  Stored in directory: C:\Users\raych\AppData\Local\Temp\pip-ephem-wheel-cache-0xcgwg_i\wheels\ec\1a\a4\33ac9c84c9d98e015af8ce118e799dc4aa66a6ecd3bb88fc28
Successfully built pyscript_stubs
Installing collected packages: pyscript_stubs
Successfully installed pyscript_stubs-0.0.2

[Josverl]

I think that is a fault caused by difference in case sensitivity between Windows and Linux.

There should only be one of these, but it requires a git history rewrite to correct it.