v0.3.2

jpndistrict 0.3.2

• Clarified the arguments that to select administration area. pref_code is jis code from 1 to 47. jis_code is an identifier for a city that range of 5 digits.
• find_city() is support sf geometry.

Fixed Issues

• Remove redundant character from prefecture code 13 data #13
• mesh_district() now return only selected administation area #15
• Broken district_viewer() #16