Read files assuming they are UTF-8 encoded

treebank_parser/conllu/parser.py

@@ -204,7 +204,7 @@ def parse(self):
 		"""
 
 		linenumber = 1
-		with open(self._input_file, 'r') as f:
+		with open(self._input_file, 'r', encoding = "utf-8") as f:
 			tbp_logging.info(f"Input file {self._input_file} has been opened correctly.")
 
 			begin = time.perf_counter()