modify delete co-author message

app/controllers/desktop/co_authors_controller.rb

@@ -58,6 +58,6 @@ class Desktop::CoAuthorsController < ApplicationController
     @co_author = CoAuthor.find(params[:id])
     @co_author.destroy
 
-    render :json => {success: true, msg: "Paper deleted successfully!"}
+    render :json => {success: true, msg: "Co-author deleted successfully!"}
   end
 end