Update pyproject.toml

[raoulcollenteur]

Short Description

Change README.rst to README.md to release on Pypi. I checken with 'twine check dist/*' and now it should work.

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.14% (target: +0.00%)	✅ ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (0a5b1d7)	6254	4733	75.68%
Head commit (7522c1a)	6294 (+40)	4772 (+39)	75.82% (+0.14%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#745)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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