add more source

[duxiaoyang06]

Two more good source:
simpleui,a good UI
django_admin_reorder,a tool to control model_label and app_label in admin view

[haiiiiiyun]

Could you create a PR? Happy to merge.

[duxiaoyang06]

I have a try.

[enjoy-binbin]

A blog system created by Django2.1 with a lot comments and small useful function
Hope that you can take a look, thanks a lot
https://github.com/enjoy-binbin/binblog-Django