Fixed a missing backtick literal
Syntax to markdown from RDoc.
File extension update for changes.
Merge branch 'convert-korean-to-md' of https://github.com/yb66/sinatra

Testing out the Korean MD conversion
Korean Readme test conversion

fixed some syntaxes and indentations
Merge pull request #647 from kgrz/master

Added a missing backtick literal in the German README