⏮️ day 20 - restore files

Author: ArnabKumarRoy02

Day 20/README.md

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+# Day 20
+
+This is a combination of 2 tasks (very simple tasks) so I'm merging them both.
+
+## Problem Statement:
+Oops - you deleted the "essay" file, which you worked on all night!
+
+Luckily, Git is here to help! You can use `git checkout` to restore the file!
+
+Here's a similar problem: you really liked the essay from the very first commit, and want to have it back! Well, checkout can also restore things from older commits, Here's how:
+```bash
+git checkout [commit] [file]
+```
+
+
+### Questions:
+ - Restore the essay to contain "important content".
+ - Get the first version of your essay, and make a new commit with it.
+
+
+### Files:
+ - essay
+
+
+Restore Deleted File            |  Restore File from Past
+:-------------------------:|:-------------------------:
+![](https://github.com/ArnabKumarRoy02/Learn-git/assets/86621483/3952294e-57fc-4994-910d-caa01b041f74)  |  ![](https://github.com/ArnabKumarRoy02/Learn-git/assets/86621483/3952294e-57fc-4994-910d-caa01b041f74)
+
+<div align="center">
+  <p>Description of the problems.</p>
+</div>
+
+## Solution:
+
+1. Check out the file.
+```bash
+git checkout essay
+```
+
+2. Checkout the file at the initial commit.
+```bash
+git checkout "SHA Code" essay
+```
+
+3. Make a commit.
+```bash
+git commit -m "new message"
+```
+
+Restore Deleted File            |  Restore File from Past
+:-------------------------:|:-------------------------:
+![](https://github.com/ArnabKumarRoy02/Learn-git/assets/86621483/3952294e-57fc-4994-910d-caa01b041f74)  |  ![](https://github.com/ArnabKumarRoy02/Learn-git/assets/86621483/631acb2e-3a7d-476a-8e56-9af3712143da)
+
+<div align="center">
+  <p>Description of the solutions.</p>
+</div>