✨ read relative files, fix #11

Author: chfw

templates/setup.py.jj2

@@ -211,7 +211,8 @@ def read_files(*files):
 
 def read(afile):
     """Read a file into setup"""
-    with codecs.open(afile, 'r', 'utf-8') as opened_file:
+    the_relative_file = os.path.join(HERE, afile)
+    with codecs.open(the_relative_file, 'r', 'utf-8') as opened_file:
         content = filter_out_test_code(opened_file)
         content = "".join(list(content))
         return content