Update famafrench.py

This change allows the `pandas_datareader` library to read Windows text files with smart quotes and apostrophes and still convert all other characters to UTF-8, where needed.

Author: mg-karamaan

pandas_datareader/famafrench.py

@@ -58,7 +58,8 @@ def _read_zipfile(self, url):
             tmpf.write(raw)
 
             with ZipFile(tmpf, "r") as zf:
-                data = zf.open(zf.namelist()[0]).read().decode()
+                data = zf.open(zf.namelist()[0]).read().decode('utf-8','ignore')
+
 
         return data