Fix bug

bilby/gw/prior_files/GW150914.prior

docs/examples.txt

examples/README.rst

examples/core_examples/15d_gaussian.py

examples/core_examples/gaussian_example.py

examples/core_examples/grid_example.py

examples/core_examples/hyper_parameter_example.py

examples/core_examples/linear_regression.py

examples/core_examples/linear_regression_grid.py

examples/core_examples/linear_regression_pymc3.py

...ore_examples/linear_regression_pymc3_custom_likelihood.py

examples/core_examples/linear_regression_unknown_noise.py

examples/core_examples/logo/B.png

examples/core_examples/logo/I.png

examples/core_examples/logo/L.png

examples/core_examples/logo/Y.png

examples/core_examples/logo/sample_logo.py

examples/core_examples/multidimensional_gaussian.py

examples/core_examples/multivariate_gaussian_prior.py

examples/core_examples/occam_factor_example.py