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+# Rolan Muliukin Lab 1 submission
+
+## Task 1
+
+- I create my SHH key for this Mac
+
+```bash
+ssh-keygen -t ed25519 -C "rolanmuliukin@innopolis.university"
+```
+
+![](attachments/pic1-1-1.png)
+
+- And put this key into my git `user.signingkey`
+
+![](attachments/pic1-1-2.png)
+
+- After I create this file, and make the commit. Also I add `ssh.pub` on git  and get `Verified`
+
+![](attachments/pic1-1-3.png)
+
+### Commit signing adds a cryptographic signature to a commit, which proves two things:
+1.	Authenticity: the commit was created by the holder of the private SSH key (it’s much harder to impersonate an author).
+2.	Integrity: if the commit content changes after signing, the signature becomes invalid, so tampering is detectable.
+
+## Task 2
+
+- I create file `.github/pull_request_template.md` on my `main` brunch
+
+![](attachments/pic1-2-1.png)
+
+- And add this template 
+
+![](attachments/pic1-2-2.png)
+
+- Now I check It is apply to my PR
+
+![](attachments/pic1-2-3.png)
+
+And how you can see this template apply to my PR
+
+PR templates standardize PR descriptions so reviewers always receive the same key information (goal, changes, testing). This reduces back-and-forth questions, speeds up reviews, and improves consistency across the team. A checklist also prevents missing steps (e.g., testing, security checks, documentation).
+
+