update md file

GIT_ASSIGNMENT.md

@@ -125,7 +125,71 @@
 ![Git ignore](gitignore_file.png)
 
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+## 🔀 Step 14: Performing a Merge
 
+⚡ _I merged changes from another branch into my current branch._
+
+![git log --merge](git_log_--_merge.txt.png)
+
+📌 Since both branches had commits, Git created a **3-way merge commit** (not a fast-forward merge).
+
+---
+## 📜 Step 15: Inspecting Merge Commit Details
+
+👀 _I used `git log -p -- merge.txt` to review the merge commit changes._
+
+![git log -p -- merge.txt](git_log_-p_--_merge.txt.png)
+
+📝 Shows added and modified lines from both branches.
+
+---
+## 🗂 Step 16: Checking Simplified Log After Merge
+
+⚡ _To quickly see the commit history after the merge, I ran:_
+
+![git log --oneline -- merge.txt](git_log_--oneline_--_merge.txt.png)
+
+---
+## 🌳 Step 17: Visualizing All Branches and Merge
+
+🎨 Using the graph mode to visualize history clearly:
+
+![git log --graph --oneline --all](git_log_--graph_--oneline_--all.png)
+
+🌿 Shows both branches and the merge commit.
+
+---
+## Step 18: Blame – Tracking Line History
+
+🖊 With git blame, I checked who wrote each line in merge.txt.
+
+![git blame merge.txt](git_blame_merge.txt.png)
+
+🔑 Each line is attributed to its commit.
+
+---
+## 🎯 Step 19: Blame with Line Range
+
+🎯 To narrow focus, I ran blame only for lines 1–5.
+
+![git blame -L 1,5 merge.txt](git_blame_-L_1,5_merge.txt.png)
+
+---
+
+## 📧 Step 20: Blame with Email
+
+📧 Finally, I checked the author emails using git blame -e.
+
+![git blame -e merge.txt](git_blame_-e_merge.txt.png)
+
+---
+## 🔀 Step 21: Merging Branch `feature/mergeFile` into Main
+
+⚡ _I merged the branch `feature/bugReport` into `feature/mergeFile` using the command:_
+
+![git merge feature/mergeFile](git_merge.png)
+
+---
 # ✨ Summary
 
 1. ✅ **Git Version Check** – Verified installation.  
@@ -139,5 +203,6 @@
 9. ✅ **Git Pull** – Pulled updates.  
 10. ✅ **Git Remote** – Checked remotes.  
 11. ✅ **Git Ignore** – Excluded files.  
-
+12. ✅ **Git Merge** – Performed and confirmed a 3-way merge.
+13. ✅ **Git Blame** – Tracked who wrote each line (with -L and -e options).
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