Reformat code block as markdown literal code, so doctest skips it. Fixes #264#265

GeospatialPython merged 1 commit intoGeospatialPython:masterGeospatialPython/pyshp:masterfrom

JamesParrott:PyShp-fix-doctestJamesParrott/IronPyShp:PyShp-fix-doctestCopy head branch name to clipboard