Feedwordpress customization

I really liked feedwordpress and i am using to my site.

It’s reading content and posting in my site automatically and everything is fine.

My problem is:

Feed which i am reading, it has copy right content in it along with description so it’s posting continuously to post so i want to add 2 times
before copyright statement so i want to edit description at time of reading feed. Can you tell me in which file, I can do this?

Also, i want to give back link saying “Read Full Story” to original post.

How can i do this?

Please help me.