version-sync 0.8.1

Simple crate for ensuring that version numbers in README files are updated when the crate version changes.
Documentation 
language: rust

rust:
  - 1.31.0 # Rust 2018
  - stable
  - beta
  - nightly

cache: cargo

before_script:
  - cargo update

matrix:
  allow_failures:
    - rust: nightly