* doc/syntax/calling_methods.rdoc (Receiver):  Added :: as pointed out
  by Tony Arcieri
* doc/syntax/calling_methods.rdoc (Block Argument):  Fixed { } block
  examples as pointed out by David Copeland.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38818 b2dd03c8-39d4-4d8f-98ff-823fe69b080e