Updated Issue Template [skip ci]

Note for frameworks

.github/ISSUE_TEMPLATE.md

@@ -6,8 +6,8 @@
 
 ### What versions of Pillow and Python are you using?
 
-Please include code that reproduces the issue and whenever possible, an image that demonstrates the issue. The best reproductions are self-contained scripts with minimal dependencies.
+Please include code that reproduces the issue and whenever possible, an image that demonstrates the issue. The best reproductions are self-contained scripts with minimal dependencies. If you are using a framework such as plone, django, or buildout, try to replicate the issue just using Pillow. 
 
 ```python
 code goes here
-```
+```