Gemfile in noise-ruby-0.6.3 vs Gemfile in noise-ruby-0.7.0

@@ -4,5 +4,8 @@
 
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 # Specify your gem's dependencies in noise.gemspec
 gemspec
+
+# Use secp256k1 as hash function
+# gem 'secp256k1-ruby'