Installing Git on Arch (#92934)

* add git installation instr for arch

* add to contributors

---------

Co-authored-by: Roshan Jossy <roshanjossey@gmail.com>

Contributors.md

@@ -1,5 +1,6 @@
 # Contributors
 
+- [hannah0wang 🍍](https://github.com/hannah0wang)
 - [Nathan Nguyen](https://github.com/froztty)
 - [asyraf34](https://github.com/asyraf34) : ***I Love Github!***
 - Chagit Lipsky!

docs/additional-material/git_workflow_scenarios/installing-git-arch.md

@@ -0,0 +1,83 @@
+# Installing Git on Arch Linux
+
+To install Git on Arch Linux, you can use the package manager pacman. First, open a terminal and update the system with the following command:
+
+```shell
+$ sudo pacman -Syu
+```
+
+Next, install Git by running:
+
+```shell
+$ sudo pacman -S git
+```
+
+To confirm that Git has been installed correctly, run the following command:
+
+```shell
+$ git --version
+```
+
+You should see output similar to:
+
+```shell
+Output
+$ git version 2.34.1
+```
+
+# Set up Git
+
+Configuration can be achieved by using the git config command.
+Specifically, you need to provide your name and email address because Git embeds this information into each commit you do.
+You can add this information by typing:
+
+Now that we are done with installing Git, let us configure it for first time use using "git config" command.
+We need to make sure your username and email address are set correctly. To set them, use the command:
+
+```shell
+$ git config --global user.name "Your Name"
+$ git config --global user.email "youremail@domain.com"
+```
+
+You can display all the configuration items that have been set by entering the following command in your terminal:
+
+```shell
+$ git config --list
+```
+
+If all config field have been set up to your need the output should look something like
+
+```shell
+user.name=Your Name
+user.email=youremail@domain.com
+```
+
+# Persist Git Credentials
+
+By default, Git will prompt you to re-enter your username and password every time you interact with a remote repository. You can configure Git to cache or store your credentials to avoid this. Below are two common methods:
+
+### 1. Credential Caching
+
+Git can temporarily store your credentials in memory, so you don't need to re-enter them frequently. Run the following command to enable credential caching:
+
+```shell
+$ git config --global credential.helper cache
+```
+
+By default, credentials will be cached for 15 minutes. To adjust the timeout period (e.g., 1 hour), use:
+
+```shell
+$ git config --global credential.helper 'cache --timeout=3600'
+```
+
+---
+
+### 2. Credential Storing
+
+If you prefer to store your credentials permanently in plain text (less secure but convenient), you can use the following command:
+
+```shell
+$ git config --global credential.helper store
+```
+
+When using this method, your credentials will be saved in plain text in `~/.git-credentials`. Be cautious with this approach, especially on shared or public machines.