doco dont forget to remove old pickled files

nlgio · nlgio · commit 6b95b60228ed · 2020-01-05T18:28:15.000+01:00
diff --git a/docs/migrate.rst b/docs/migrate.rst
@@ -3,7 +3,7 @@
 Migration Guide
 ===============
 
-please rebuild Your models. Furthermore not much is necessary but the usual porting activities. 
+please rebuild Your models and remove any left pickle.cache files. Furthermore not much is necessary but the usual porting activities. 
 
  http://python3porting.com/ might be helpful here.
  
