Added 4 new setting options (suppressScrollX, suppressScrollY, scrollXMarginOffset and scrollYMarginOffset)

Added 4 new setting options (suppressScrollX, suppressScrollY,
scrollXMarginOffset and scrollYMarginOffset)
README.md formatting
Merge pull request #77 from adrianonantua/master

Added 4 new setting options (suppressScrollX, suppressScrollY, scrollXMarginOffset and scrollYMarginOffset)