add links to crates.io & docs.rs to readme

README.md

@@ -5,14 +5,18 @@ An implementation of the
 [Aberth-Ehrlich method](https://en.wikipedia.org/wiki/Aberth_method)
 for finding the zeros of a polynomial.
 
+[crates.io](https://crates.io/crates/aberth) | [docs.rs](https://docs.rs/aberth)
+
+---
+
 Aberth's method uses an electrostatics analogy to model the approximations as
 negative charges and the true zeros as positive charges. This enables
 finding all complex roots simultaneously, converging cubically (worst-case it
 converges linearly for zeros of multiplicity).
 
 This crate is `#![no_std]` and tries to have minimal dependencies. It uses
 [arrayvec](https://crates.io/crates/arrayvec) to avoid allocations, which will
-be removed in the future when rust stabilises support for const-generics.
+be removed when rust stabilises support for const-generics.
 
 
 Usage
@@ -76,8 +80,7 @@ for polynomial in [a, b] {
 
 Note that the returned values are not sorted in any particular order.
 
-The coefficient of the highest degree term should not be zero or you will get
-nonsense extra roots (probably at 0 + 0j).
+The coefficient of the highest degree term should not be zero.
 
 
 `#![no_std]`