Update setup.py (#39)

Prepare for 0.9.0 release (#37)

* Update pyproject.toml

* Update setup.py

Prepare for 0.8.0 release (#30)

Update setup.py (#24)

Merge pull request #19 from tomekzaw/bump-version

bump version; update readme

Merge pull request #14 from tomekzaw/parametrize-with-sympy-symbols

Parametrize with SymPy symbols

Merge pull request #9 from tomekzaw/calculate-probs

Calculate probabilities symbolically

Merge pull request #8 from tomekzaw/fix-backend-selection

Fix backend selection

Merge pull request #6 from tomekzaw/use-sympy

Rewrite code to use sympy

Merge pull request #2 from tomekzaw/more-qubits

Generalize for more qubits