For each form factor page, insert a section "Example" that shows the scattering by uncorrelated, oriented particles for horizontal incidence. Follow the example of Pyramid4. For each form factor XX, do the following: - in Examples/ff, replace SasXX.py by XX.py. + take code from Pyramid4.py + take form factor constructor from SasXX.py + make sure all particles have about the same volume - in Test/Examples/CMakeLists.txt, add a line `test_example(ff/XX 2e-10)` - run new test, copy test output to Tests/ReferenceData/ExamplesMini/ff - add section to Hugo page of XX