Change "peptide" references in code to "sequence", adding comments

src/main/java/UserInterface.java

@@ -681,7 +681,8 @@ public class UserInterface {
         System.out.println("This program simulates BiGpairSEQ, a graph theory based adaptation");
         System.out.println("of the pairSEQ algorithm for pairing T cell receptor sequences.");
         System.out.println();
-        System.out.println("For full documentation, see: https://gitea.ejsf.synology.me/efischer/BiGpairSEQ");
+        System.out.println("For full documentation, view readme.md file distributed with this code");
+        System.out.println("or visit https://gitea.ejsf.synology.me/efischer/BiGpairSEQ.");
         System.out.println();
         System.out.println("pairSEQ citation:");
         System.out.println("Howie, B., Sherwood, A. M., et. al.");