Add SciPy page

Author: ChrisRackauckas

docs/pages.jl

@@ -48,6 +48,7 @@ pages = [
         "api/nlsolve.md",
         "api/nlsolvers.md",
         "api/petsc.md",
+        "api/scipy.md",
         "api/siamfanlequations.md",
         "api/speedmapping.md",
         "api/sundials.md",

docs/src/api/scipy.md

@@ -0,0 +1,25 @@
+# SciPy
+
+This is an extension for importing solvers from
+[SciPy](https://scipy.org/) into the SciML
+interface. Note that these solvers do not come by default, and thus one needs to install
+the package before using these solvers:
+
+```julia
+import Pkg
+Pkg.add("NonlinearSolveSciPy")
+import NonlinearSolveSciPy as NLSP
+```
+
+Note that using this package requires Python and SciPy to be available via PythonCall.jl.
+
+## Solver API
+
+```@docs
+NonlinearSolveSciPy.SciPyLeastSquares
+NonlinearSolveSciPy.SciPyLeastSquaresTRF
+NonlinearSolveSciPy.SciPyLeastSquaresDogbox
+NonlinearSolveSciPy.SciPyLeastSquaresLM
+NonlinearSolveSciPy.SciPyRoot
+NonlinearSolveSciPy.SciPyRootScalar
+```