modify readme

Author: jonasBoss

README.md

@@ -3,13 +3,13 @@ A Interpolation crate for usage with the rust [ndarray](https://crates.io/crates
 
 # Features
  - Interpolation of _n_-dimensional data along the first axis
+ - Add your own Interpolation algorithms
  - Interpolation of owned arrays and array views
  - Interpolation at multiple points at once
 
 ## Interpolation strategies
  - Linear interpolation with, and without extrapolation
  - Cubic spline interpolation
- - support for custom strategies
 
 ## Planned Features
  - More interpolation strategies