add doc uri

Author: varonix0

infisical-sdk.gemspec

@@ -17,6 +17,7 @@ Gem::Specification.new do |spec|
   spec.metadata["homepage_uri"] = spec.homepage
   spec.metadata["source_code_uri"] = spec.homepage
   spec.metadata["changelog_uri"] = "#{spec.homepage}/releases"
+  spec.metadata["documentation_uri"] = "https://rubydoc.info/gems/infisical-sdk"                                          
   spec.metadata["rubygems_mfa_required"] = "true"
 
   spec.files = Dir.chdir(__dir__) do