Add gemfile lock file for new ascii doctor versions

Gemfile.lock

@@ -66,11 +66,11 @@ GEM
       faraday_middleware (~> 0.9)
       faraday_middleware-multi_json (~> 0.0)
       oauth2 (~> 1.0)
-    asciidoctor (1.5.8)
+    asciidoctor (2.0.10)
     asciidoctor-include-ext (0.3.1)
       asciidoctor (>= 1.5.6, < 3.0.0)
-    asciidoctor-plantuml (0.0.8)
-      asciidoctor (~> 1.5)
+    asciidoctor-plantuml (0.0.9)
+      asciidoctor (>= 1.5.6, < 3.0.0)
     ast (2.4.0)
     atomic (1.1.99)
     attr_encrypted (3.1.0)
@@ -1025,9 +1025,9 @@ DEPENDENCIES
   akismet (~> 2.0)
   apollo_upload_server (~> 2.0.0.beta3)
   asana (~> 0.8.1)
-  asciidoctor (~> 1.5.8)
+  asciidoctor (~> 2.0.10)
   asciidoctor-include-ext (~> 0.3.1)
-  asciidoctor-plantuml (= 0.0.8)
+  asciidoctor-plantuml (= 0.0.9)
   attr_encrypted (~> 3.1.0)
   awesome_print
   babosa (~> 1.0.2)