gems: fix gem name to avoid conflict (#7)

README.md

@@ -1,6 +1,11 @@
 # The Keccak (SHA-3) digest for Ruby
 
-This Ruby extension implements the SHA-3 ([Keccak](http://keccak.noekeon.org/)) cryptographic hashing algorithm. It is based on the reference C implementation, version 3.2. The exposed interface is almost identical to that of the `digest` standard library.
+![GitHub Workflow Status](https://img.shields.io/github/workflow/status/q9f/keccak.rb/Build/main)
+![GitHub top language](https://img.shields.io/github/languages/top/q9f/keccak.rb)
+![GitHub release](https://img.shields.io/github/v/release/q9f/keccak.rb)
+![Gem](https://img.shields.io/gem/v/keccak)
+
+This Ruby extension exposes the [Keccak](http://keccak.noekeon.org/) (SHA-3) digest C bindings in the non-final version used by Ethereum. It is based on the reference `C` implementation, version 3.2. The exposed interface is almost identical to that of the `digest` standard library.
 
 ## Installation
 

digest-keccak.gemspec → keccak.gemspec

@@ -1,22 +1,23 @@
 require File.expand_path('lib/digest/sha3/version')
 
 Gem::Specification.new do |s|
-  s.name = "digest-keccak"
+  s.name = "keccak"
   s.version = Digest::SHA3::Version::STRING
-  s.summary = "The SHA-3 (Keccak) hash used by Ethereum."
+  s.summary = "The Keccak (SHA-3) hash used by Ethereum."
   s.email = "[email protected]"
-  s.homepage = "https://github.com/q9f/digest-keccak-ruby"
-  s.description = "The SHA-3 (Keccak) hash use by Ethereum. This does not implement the final FIPS202 standard, today known as SHA3 but rather an early version, commonly referred to as Keccak."
+  s.homepage = "https://github.com/q9f/keccak.rb"
+  s.description = "The Keccak (SHA-3) hash use by Ethereum. This does not implement the final FIPS202 standard, today known as SHA3 but rather an early version, commonly referred to as Keccak."
   s.authors = ["Afri Schoedon", "Chris Metcalfe", "Hongli Lai (Phusion)", "Keccak authors"]
   s.extensions << "ext/digest/extconf.rb"
   s.required_ruby_version = ">= 2.2"
   s.license = "Apache-2.0"
 
   s.files = Dir[
     "README.md",
+    "COPYRIGHT",
     "LICENSE",
     "Makefile",
-    "digest-keccak.gemspec",
+    "keccak.gemspec",
     "ext/**/*.{c,h,rb}",
     "lib/**/*"
   ]