docs: extend package description in README (#319)

* style: remove space between dependency boundaries
  This style works better when listing several boundaries

README.md

@@ -19,9 +19,12 @@
 [![Imports: isort](https://img.shields.io/badge/%20imports-isort-%231674b1?style=flat&labelColor=ef8336)](https://pycqa.github.io/isort)
 
 TensorWaves is a fitter package that optimizes mathematical models to data
-samples. The models can be any mathematical expression that is then converted
-to any computational backend. In addition, TensorWaves provides functionality
-to generate toy Monte Carlo data samples.
+samples. The models can be any _symbolic_ mathematical expression that is then
+converted to any computational backend. In addition, TensorWaves provides
+functionality to generate toy Monte Carlo data samples. The package is
+developed in parallel with [AmpForm](https://github.com/ComPWA/ampform), which
+implements physics models, but its 'lambdifying' mechanisms can in principle be
+used independently.
 
 All documentation can be found on
 [tensorwaves.rtfd.io](https://tensorwaves.readthedocs.io).

docs/index.md

@@ -27,7 +27,10 @@ The decision to use Python only has been further inspired by
 TensorWaves is a fitter package that optimizes mathematical models to data
 samples. The models can be any mathematical expression (best expressed with
 {mod}`sympy`) that is then converted to any computational backend. In addition,
-the {mod}`tensorwaves.data` module allows one to generate toy data samples.
+the {mod}`tensorwaves.data` module allows one to generate toy data samples. The
+package is developed in parallel with {doc}`AmpForm <ampform:index>`, which
+implements physics models, but its 'lambdifying' mechanisms can in principle be
+used independently.
 
 ```{link-button} usage
 ---

setup.cfg

@@ -61,7 +61,7 @@ jax =
 numba =
     numba
 scipy =
-    scipy >= 1
+    scipy >=1
 viz =
     graphviz
 all =
@@ -73,9 +73,9 @@ doc =
     %(all)s
     jupyter
     matplotlib
-    myst-nb >= 0.11  # myst_enable_extensions
+    myst-nb >=0.11  # myst_enable_extensions
     pandas
-    Sphinx >= 3
+    Sphinx >=3
     sphinx-book-theme
     sphinx-copybutton
     sphinx-panels
@@ -86,12 +86,12 @@ test =
     %(all)s
     pytest
     pytest-cov
-    pytest-mock >= 3.3.0
+    pytest-mock >=3.3.0
     pytest-notebook
     pytest-profiling
     pytest-xdist
 format =
-    black < 21.8*  # https://github.com/ComPWA/tensorwaves/runs/3459570447 https://github.com/tensorflow/tensorflow/issues/51743
+    black <21.8*  # https://github.com/ComPWA/tensorwaves/runs/3459570447 https://github.com/tensorflow/tensorflow/issues/51743
     isort
 lint =
     flake8
@@ -102,16 +102,16 @@ lint =
     flake8-pytest-style
     flake8-rst-docstrings
     flake8-use-fstring
-    mypy >= 0.570  # attrs support
+    mypy >=0.570  # attrs support
     pep8-naming
     pydocstyle
-    pylint != 2.11.*  # typing-extensions>=3.10.0 conflict
+    pylint !=2.11.*  # typing-extensions>=3.10.0 conflict
 sty =
     %(all)s  # type hints
     %(format)s
     %(lint)s
     %(test)s  # for pytest type hints
-    pre-commit >= 1.4.0
+    pre-commit >=1.4.0
     types-docutils
     types-PyYAML
 dev =
@@ -122,9 +122,9 @@ dev =
     aquirdturtle_collapsible_headings
     jupyterlab
     jupyterlab-code-formatter
-    pip-tools >= 6.1.0  # for extras_require
+    pip-tools >=6.1.0  # for extras_require
     sphinx-autobuild
-    tox >= 1.9  # for skip_install, use_develop
+    tox >=1.9  # for skip_install, use_develop
 
 [options.packages.find]
 where = src