Create FAQs

[Chilipp]

psy-view requires FAQs, to be more intuitive. This issue is to list questions that should be inserted

[Chilipp]

Question: My data is not displayed

Answer: Did you choos the correct plotmethod? Note that mapplot is selected by default but this might not be the best choice for your file. Otherwise, please open an issue at https://github.com/psyplot/psy-view/issues, ideally with the zipped (i.e. compressed) netCDF file or a link where it can be downloaded.