Merge branch 'scaleracademy:main' into 21pravi-details

Author: 21pravi

Challenges/challenge_21.md

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+## Welcome to Challenge 21
+
+Welcome to the 21st Challenge 
+
+Today we will be learning about Git Aliases! :). This is an amazing feature that helps us use less keystroke
+
+ The term alias is synonymous with a shortcut. Alias creation is a common pattern found in other popular utilities like `bash` shell. Aliases are used to create shorter commands that map to longer commands. Aliases enable more efficient workflows by requiring fewer keystrokes to execute a command. To learn more;
+
+ - [Git Alias](https://www.atlassian.com/git/tutorials/git-alias)
+
+  ## Tasks
+
+ - Go through the Git Alias documentation shared here
+ - Create at least 2 alias for any git commands you feel is too long
+ - Take a screenshot of the alias you created. hint run `git config --get-regexp alias`
+ - Take a screenshot of using your alias
+ - Post these screenshot in the issue created in the prior challenges 

Challenges/challenge_22.md

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+## Welcome to Challenge 22
+
+Welcome to the 22nd Challenge 
+
+Today we will learn how to work with GitHub pages!
+
+#### Brief Overview
+
+GitHub pages allows GitHub users to host static websites on GitHub's server for free. To learn more visit the official [GitHub Pages site](https://pages.github.com/)
+
+## Tasks
+
+- Create a new repository on GitHub
+- Create a basic static website about yourself
+- Add your html site to your respository.
+- Host your site on GitHub pages
+
+## How to Submit
+
+
+-  Make a new commit to the pull request that you have made in previous challenges by making this change to the ``yourusername.md`` file that exists inside the ``contributors\your-user-name`` directory in the following format: 
+```
+---
+name: your_name
+github_user_name: YOUR-GITHUB-USERNAME
+url_of_github_issue: Link_of_the_github_issue_created_in_first_challenge
+your_favroite_programming_language: Add your favorite programming language here
+your_hosted_github_pages_link: Add your hosted github page link here
+your_hosted_github_pages_repository_link: Add your repository link here
+---
+``` 
+- Add screenshots of your site to the pull request