diff --git a/rust-for-bitcoiners-2/QandA_for_assignment_1.md b/rust-for-bitcoiners-2/QandA_for_assignment_1.md
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+## This contain all disscussions and topic realted to assignment 1 caesar_cipher
diff --git a/rust-for-bitcoiners-2/updating_upstream_manually.md b/rust-for-bitcoiners-2/updating_upstream_manually.md
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+## updating your repo with upstream if there is any correction made.
+
+Let me try to update mine so I can explain to the others
+All right, it's a bit more complicated than cloning again, it will require a rebase. I'll explain in the next message so it can eventually be pinned.
+
+### step1 go to your repo and add a new remote (the repo delcin is updating):
+`git remote add upstream https://github.com/delcin-raj/rfb_2_2024_2.git`
+
+### step2 fetch from upstream:
+`git pull upstream main --rebase`
+
+in case of conflict (happened to me), edit each conflicting file. It will have markers like these:
+
+` <<<<<<< HEAD
+this is some content to mess with
+content to append
+
+totally different content to merge later
+ new_branch_to_merge_later `
+
+To select the new text, change it to something like:
+
+`this is some content to mess with content to append`
+
+There can be potentially many of these, inspect and edit every single one.
+
+### step 3 after fixing all conflicts, stage the conflicting files:
+`git add .`
+
+### step4 continue rebasing:
+`git rebase --continue`
+
+### step 5 push to your repo:
+`git push origin main --force-with-lease`
+
+Github classroom does not update repos automatically when the template repo changes.
+When someone accepts the invitation link, it will clone the template in a new repo for the student.
+So, if you accepted the invitation before the change, you have to manually rebase like the above.
+If you accepted after the change, it will be already right.
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