- bump dependencies and add README

src/metric.rs

@@ -8,7 +8,7 @@ use algos::ObjectiveFunction;
 use itertools::Itertools;
 use ndarray::{Array, Array1, Array2, Array3, AsArray, Axis, Dimension, s};
 use num::cast::AsPrimitive;
-use rand::Rng;
+use rand::RngExt;
 use rayon::iter::IntoParallelIterator;
 use rayon::iter::ParallelIterator;
 use std::cell::RefCell;
@@ -788,8 +788,9 @@ mod tests {
             Transform::new(vec![1.0, 0.0], vec![im_a.shape()[0]]).interpolate::<1, _, _>(&im_a)?;
         let a = gaussian_smooth(im_a.view(), &[50.0])?;
         let b = gaussian_smooth(im_b.view(), &[50.0])?;
-        let m = MattesMetric::new_from_arrays(a.view(), b.view(), SamplingArg::Fixed(1000), 3, 0.05)?
-            .with_fixed_mu(vec![None, Some(0.0)]);
+        let m =
+            MattesMetric::new_from_arrays(a.view(), b.view(), SamplingArg::Fixed(1000), 3, 0.05)?
+                .with_fixed_mu(vec![None, Some(0.0)]);
         let mut npz = NpzWriter::new(File::create(
             std::env::home_dir().unwrap().join("tmp/metric.npz"),
         )?);