Update install instructions to include ninja and python 3.11

Installation.rst

@@ -17,12 +17,13 @@ Build environment
 
 * cmake >= 3.16
 * MPICH or OPENMPI
-* PETSc (<= 3.16.1)
+* PETSc
 * HDF5  
 * SWIG (>= 4.0) 
 * LibXML (>= 2.0)
-* Python (>3.5, <= 3.9.9) 
+* Python (>3.5, <= 3.11) 
 * Numpy
+* Ninja
 
 Running Requirements
 ********************
@@ -101,4 +102,4 @@ Notes on Installing Docker
 
      docker-machine ip default
 
-  but note that this will only work correctly from the *Docker Quickstart Terminal*.
+  but note that this will only work correctly from the *Docker Quickstart Terminal*.

pyproject.toml

@@ -1,3 +1,3 @@
 [build-system]
 build-backend = "setuptools.build_meta"
-requires = ["setuptools","numpy>=1.20.3","swig>=4.0.0","cmake>=0.29.24"]
+requires = ["setuptools","numpy>=1.20.3","swig>=4.0.0","cmake>=0.29.24", "ninja"]