Update rdoc.gemspec by adding lib/rdoc/markup/table.rb

Fixes #808

Author: mame

rdoc.gemspec

@@ -50,7 +50,6 @@ RDoc includes the +rdoc+ and +ri+ tools for generating and displaying documentat
     "bin/setup",
     "exe/rdoc",
     "exe/ri",
-    "man/ri.1",
     "lib/rdoc.rb",
     "lib/rdoc/alias.rb",
     "lib/rdoc/anon_class.rb",
@@ -167,6 +166,7 @@ RDoc includes the +rdoc+ and +ri+ tools for generating and displaying documentat
     "lib/rdoc/markup/raw.rb",
     "lib/rdoc/markup/regexp_handling.rb",
     "lib/rdoc/markup/rule.rb",
+    "lib/rdoc/markup/table.rb",
     "lib/rdoc/markup/to_ansi.rb",
     "lib/rdoc/markup/to_bs.rb",
     "lib/rdoc/markup/to_html.rb",
@@ -222,6 +222,7 @@ RDoc includes the +rdoc+ and +ri+ tools for generating and displaying documentat
     "lib/rdoc/tom_doc.rb",
     "lib/rdoc/top_level.rb",
     "lib/rdoc/version.rb",
+    "man/ri.1",
     "rdoc.gemspec",
   ]
   # files from .gitignore