giblish.gemspec in giblish-0.2.12 vs giblish.gemspec in giblish-0.3.0

@@ -34,9 +34,10 @@
   spec.add_development_dependency "minitest", "~> 5.0"
   spec.add_development_dependency "rake", "~> 10.0"
 
   # Usage: spec.add_runtime_dependency "[gem name]", [[version]]
   spec.add_runtime_dependency "asciidoctor", "~>1.5", ">= 1.5.7.1"
+  spec.add_runtime_dependency "asciidoctor-diagram", ["~> 1.5"]
   spec.add_runtime_dependency "asciidoctor-pdf", [">= 1.5.0.alpha.16"]
   spec.add_runtime_dependency "asciidoctor-rouge", ["~> 0.3"]
   spec.add_runtime_dependency "git", "~> 1.3"
   # needed by asciidoctor-pdf, see instructions at
   # https://github.com/asciidoctor/asciidoctor-pdf/releases