cargo: fix license specification + badge

PR #87

Cargo.toml

@@ -7,12 +7,10 @@ homepage = "https://github.com/BurntSushi/aho-corasick"
 repository = "https://github.com/BurntSushi/aho-corasick"
 readme = "README.md"
 keywords = ["string", "search", "text", "aho", "multi"]
-license = "Unlicense/MIT"
+license = "Unlicense OR MIT"
 categories = ["text-processing"]
 autotests = false
-exclude = [
-  "/aho-corasick-debug", "/ci/*", "/.travis.yml", "/appveyor.yml",
-]
+exclude = ["/aho-corasick-debug"]
 edition = "2018"
 
 [workspace]

README.md

@@ -9,7 +9,7 @@ Features include case insensitive matching, overlapping matches, fast searching
 via SIMD and optional full DFA construction and search & replace in streams.
 
 [![Build status](https://github.com/BurntSushi/aho-corasick/workflows/ci/badge.svg)](https://github.com/BurntSushi/aho-corasick/actions)
-[![](https://meritbadge.herokuapp.com/aho-corasick)](https://crates.io/crates/aho-corasick)
+[![crates.io](https://img.shields.io/crates/v/aho-corasick.svg)](https://crates.io/crates/aho-corasick)
 
 Dual-licensed under MIT or the [UNLICENSE](https://unlicense.org/).